[Squash] nit

Co-authored-by: Antoine du Hamel <[email protected]>

Author: jasnell

doc/api/globals.md

@@ -420,8 +420,8 @@ The object that acts as the namespace for all W3C
 [`URL`]: url.md#url_class_url
 [`__dirname`]: modules.md#modules_dirname
 [`__filename`]: modules.md#modules_filename
-[`buffer.atob()`]: buffer.html#buffer_buffer_atob_data
-[`buffer.btoa()`]: buffer.html#buffer_buffer_btoa_data
+[`buffer.atob()`]: buffer.md#buffer_buffer_atob_data
+[`buffer.btoa()`]: buffer.md#buffer_buffer_btoa_data
 [`clearImmediate`]: timers.md#timers_clearimmediate_immediate
 [`clearInterval`]: timers.md#timers_clearinterval_timeout
 [`clearTimeout`]: timers.md#timers_cleartimeout_timeout