gh-91877: Fix WriteTransport.get_write_buffer_{limits,size} docs (#92338)

- Amend docs for WriteTransport.get_write_buffer_limits
- Add docs for WriteTransport.get_write_buffer_size

diff --git a/Doc/library/asyncio-llapi-index.rst b/Doc/library/asyncio-llapi-index.rst
index 69b550e43f5aa972252257f35b81ff0e9a141f0d..cdadb7975ad4941a7271b5b6d95560436827e245 100644 (file)
--- a/Doc/library/asyncio-llapi-index.rst
+++ b/Doc/library/asyncio-llapi-index.rst
@@ -358,6 +358,10 @@ pipes, etc).  Returned from methods like
 
     * - :meth:`transport.get_write_buffer_size()
         <WriteTransport.get_write_buffer_size>`
+      - Return the current size of the output buffer.
+
+    * - :meth:`transport.get_write_buffer_limits()
+        <WriteTransport.get_write_buffer_limits>`
       - Return high and low water marks for write flow control.
 
     * - :meth:`transport.set_write_buffer_limits()