misc : prefer ggml-org models in docs and examples (#20827)

* misc : prefer ggml-org models in docs and examples

Prefer referring to known-good quantizations under ggml-org rather than
3rd-party uploaders.

* remove accidentally committed file

common/arg.cpp

@@ -2583,7 +2583,7 @@ common_params_context common_params_parser_init(common_params & params, llama_ex
         {"-hf", "-hfr", "--hf-repo"}, "<user>/<model>[:quant]",
         "Hugging Face model repository; quant is optional, case-insensitive, default to Q4_K_M, or falls back to the first file in the repo if Q4_K_M doesn't exist.\n"
         "mmproj is also downloaded automatically if available. to disable, add --no-mmproj\n"
-        "example: unsloth/phi-4-GGUF:q4_k_m\n"
+        "example: ggml-org/GLM-4.7-Flash-GGUF:Q4_K_M\n"
         "(default: unused)",
         [](common_params & params, const std::string & value) {
             params.model.hf_repo = value;