Update info docs with two new metrics. Correct two mistakes.

commands/info.md

@@ -300,8 +300,10 @@ Here is the meaning of all fields in the **stats** section:
 *   `total_writes_processed`: Total number of write events processed
 *   `io_threaded_reads_processed`: Number of read events processed by the main and I/O threads
 *   `io_threaded_writes_processed`: Number of write events processed by the main and I/O threads
-*   `stat_reply_buffer_shrinks`: Total number of output buffer shrinks
-*   `stat_reply_buffer_expands`: Total number of output buffer expands
+*   `client_query_buffer_limit_reached`: Total number of clients reached query buffer length limit
+*   `client_output_buffer_limit_reached`: Total number of clients reached output buffer length limit
+*   `reply_buffer_shrinks`: Total number of output buffer shrinks
+*   `reply_buffer_expands`: Total number of output buffer expands
 *   `eventloop_cycles`: Total number of eventloop cycles
 *   `eventloop_duration_sum`: Total time spent in the eventloop in microseconds (including I/O and command processing)
 *   `eventloop_duration_cmd_sum`: Total time spent on executing commands in microseconds