misc: typo and grammar fixes

- Replace `Github` with `GitHub`.
- Replace `windows` with `Windows`
- Replace `advice` with `advise` where a verb is used.
- A few fixes on removing repeated words.
- Replace `a HTTP` with `an HTTP`

Closes #9802

docs/CONTRIBUTE.md

@@ -148,7 +148,7 @@ changes.
 
 ### About pull requests
 
-With github it is easy to send a [pull
+With GitHub it is easy to send a [pull
 request](https://github.com/curl/curl/pulls) to the curl project to have
 changes merged.
 

docs/EXPERIMENTAL.md

@@ -10,7 +10,7 @@ Experimental support in curl means:
    "carved in stone".
 2. You must enable the feature when invoking configure as otherwise curl will
    not be built with the feature present.
-3. We strongly advice against using this feature in production.
+3. We strongly advise against using this feature in production.
 4. **We reserve the right to change behavior** of the feature without sticking
    to our API/ABI rules as we do for regular features, as long as it is marked
    experimental.

docs/GOVERNANCE.md

@@ -158,7 +158,7 @@ When you are merging patches/pull requests...
 - squash patch sets into a few logical commits even if the PR did not, if
   necessary
 - avoid the "merge" button on GitHub, do it "manually" instead to get full
-  control and full audit trail (github leaves out you as "Committer:")
+  control and full audit trail (GitHub leaves out you as "Committer:")
 - remember to credit the reporter and the helpers.
 
 ## Who are maintainers?

docs/HYPER.md

@@ -9,7 +9,7 @@ Hyper support in curl is considered **EXPERIMENTAL** until further notice. It
 needs to be explicitly enabled at build-time.
 
 Further development and tweaking of the Hyper backend support in curl will
-happen in in the master branch using pull-requests, just like ordinary
+happen in the master branch using pull-requests, just like ordinary
 changes.
 
 ## Hyper version

docs/KNOWN_BUGS

@@ -164,7 +164,7 @@ problems may have been fixed or changed somewhat since this was written.
  18. HTTP/3
  18.1 If the HTTP/3 server closes connection during upload curl hangs
  18.2 Transfer closed with n bytes remaining to read
- 18.4 timeout when reusing a http3 connection
+ 18.4 timeout when reusing an http3 connection
  18.9 connection migration does not work
 
 ==============================================================================
@@ -1159,7 +1159,7 @@ problems may have been fixed or changed somewhat since this was written.
 
  https://github.com/curl/curl/issues/8523
 
-18.4 timeout when reusing a http3 connection
+18.4 timeout when reusing an http3 connection
 
  HTTP/3 with quiche seems to not work and always timeout a subsequent transfer
  that reuses an already established connection

docs/MANUAL.md

@@ -649,7 +649,7 @@ which of them to use. Default address can also be used:
     curl -P - ftp.download.com
 
 Download with `PORT` but use the IP address of our `le0` interface (this does
-not work on windows):
+not work on Windows):
 
     curl -P le0 ftp.download.com
 
@@ -829,7 +829,7 @@ The usage of the `-x`/`--proxy` flag overrides the environment variables.
 Unix introduced the `.netrc` concept a long time ago. It is a way for a user
 to specify name and password for commonly visited FTP sites in a file so that
 you do not have to type them in each time you visit those sites. You realize
-this is a big security risk if someone else gets hold of your passwords, so
+this is a big security risk if someone else gets hold of your passwords,
 therefore most Unix programs will not read this file unless it is only readable
 by yourself (curl does not care though).
 

docs/RUSTLS.md

@@ -1,6 +1,6 @@
 # Rustls
 
-[Rustls is a TLS backend written in Rust.](https://docs.rs/rustls/). Curl can
+[Rustls is a TLS backend written in Rust](https://docs.rs/rustls/). Curl can
 be built to use it as an alternative to OpenSSL or other TLS backends. We use
 the [rustls-ffi C bindings](https://github.com/rustls/rustls-ffi/). This
 version of curl depends on version v0.8.2 of rustls-ffi.

docs/SSL-PROBLEMS.md

@@ -66,7 +66,7 @@
 
   Schannel in Windows XP is not able to connect to servers that no longer
   support the legacy handshakes and algorithms used by those versions, so we
-  advice against building curl to use Schannel on really old Windows versions.
+  advise against building curl to use Schannel on really old Windows versions.
 
   Reference: [Prohibiting RC4 Cipher
   Suites](https://datatracker.ietf.org/doc/html/draft-popov-tls-prohibiting-rc4-01)

docs/WEBSOCKET.md

@@ -17,7 +17,7 @@ WebSocket with libcurl can be done two ways.
    of it).
 
 2. Set `CURLOPT_CONNECT_ONLY` to 2L (new for WebSocket), which makes libcurl
-   do a HTTP GET + `Upgrade:` request plus response in the
+   do an HTTP GET + `Upgrade:` request plus response in the
    `curl_easy_perform()` call before it returns and then you can use
    `curl_ws_recv()` and `curl_ws_send()` to receive and send WebSocket frames
    from and to the server.

docs/examples/anyauthput.c

@@ -44,7 +44,7 @@
 #endif
 
 /*
- * This example shows a HTTP PUT operation with authentication using "any"
+ * This example shows an HTTP PUT operation with authentication using "any"
  * type. It PUTs a file given as a command line argument to the URL also given
  * on the command line.
  *

docs/examples/cacertinmem.c

@@ -22,7 +22,7 @@
  *
  ***************************************************************************/
 /* <DESC>
- * CA cert in memory with OpenSSL to get a HTTPS page.
+ * CA cert in memory with OpenSSL to get an HTTPS page.
  * </DESC>
  */
 

docs/examples/http-post.c

@@ -40,7 +40,7 @@ int main(void)
   curl = curl_easy_init();
   if(curl) {
     /* First set the URL that is about to receive our POST. This URL can
-       just as well be a https:// URL if that is what should receive the
+       just as well be an https:// URL if that is what should receive the
        data. */
     curl_easy_setopt(curl, CURLOPT_URL, "http://postit.example.com/moo.cgi");
     /* Now specify the POST data */

docs/examples/httpput-postfields.c

@@ -43,7 +43,7 @@ static const char olivertwist[]=
    509 byte limit. */
 
 /*
- * This example shows a HTTP PUT operation that sends a fixed buffer with
+ * This example shows an HTTP PUT operation that sends a fixed buffer with
  * CURLOPT_POSTFIELDS to the URL given as an argument.
  */
 

docs/examples/httpput.c

@@ -31,7 +31,7 @@
 #include <curl/curl.h>
 
 /*
- * This example shows a HTTP PUT operation. PUTs a file given as a command
+ * This example shows an HTTP PUT operation. PUTs a file given as a command
  * line argument to the URL also given on the command line.
  *
  * This example also uses its own read callback.

docs/examples/multi-app.c

@@ -38,7 +38,7 @@
 #include <curl/curl.h>
 
 /*
- * Download a HTTP file and upload an FTP file simultaneously.
+ * Download an HTTP file and upload an FTP file simultaneously.
  */
 
 #define HANDLECOUNT 2   /* Number of simultaneous transfers */

docs/examples/multi-debugcallback.c

@@ -126,7 +126,7 @@ int my_trace(CURL *handle, curl_infotype type,
 }
 
 /*
- * Simply download a HTTP file.
+ * Simply download an HTTP file.
  */
 int main(void)
 {

docs/examples/multi-legacy.c

@@ -38,7 +38,7 @@
 #include <curl/curl.h>
 
 /*
- * Download a HTTP file and upload an FTP file simultaneously.
+ * Download an HTTP file and upload an FTP file simultaneously.
  */
 
 #define HANDLECOUNT 2   /* Number of simultaneous transfers */

docs/examples/multi-single.c

@@ -37,7 +37,7 @@
 #include <curl/curl.h>
 
 /*
- * Simply download a HTTP file.
+ * Simply download an HTTP file.
  */
 int main(void)
 {

docs/examples/post-callback.c

@@ -101,7 +101,7 @@ int main(void)
     curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
 
     /*
-      If you use POST to a HTTP 1.1 server, you can send data without knowing
+      If you use POST to an HTTP 1.1 server, you can send data without knowing
       the size before starting the POST if you use chunked encoding. You
       enable this by adding a header like "Transfer-Encoding: chunked" with
       CURLOPT_HTTPHEADER. With HTTP 1.0 or without chunked transfer, you must

docs/examples/postinmemory.c

@@ -22,7 +22,7 @@
  *
  ***************************************************************************/
 /* <DESC>
- * Make a HTTP POST with data from memory and receive response in memory.
+ * Make an HTTP POST with data from memory and receive response in memory.
  * </DESC>
  */
 #include <stdio.h>