docs : Minor cleanups (#19252)

* Update old URLs to github.com/ggml-org/

* Bump copyrights

ggml/src/ggml-opencl/ggml-opencl.cpp

@@ -3740,7 +3740,7 @@ static enum ggml_status ggml_backend_opencl_buffer_init_tensor(ggml_backend_buff
         // Reuse extra of the parent tensor. The offset of this view tensor
         // becomes `extra->offset + view_offs` and needs to be calculated when
         // it is used. This changes is needed because of the change to
-        // ggml_alloc.c in https://github.com/ggerganov/llama.cpp/pull/7640.
+        // ggml_alloc.c in https://github.com/ggml-org/llama.cpp/pull/7640.
         // `buffer` passed in here will always be `tensor->buffer`. It is OK
         // to allocate extras from the same buffer context for ordinary
         // intermediate tensors. But for views into kv cache tensors, doing so