[DOC] Fix a typo and trim trailing whitespace per .editorconfig

LEGAL

@@ -713,9 +713,8 @@ mentioned below.
     Copyright (c) 2022 James Edward Anhalt III - https://github.com/jeaiii/itoa
 
     {MIT License}[rdoc-ref:@MIT+License]
-  
 
-[ext/json/ext/vendor/ryu.h]
+[ext/json/vendor/ryu.h]
   This file is adapted from the Ryu algorithm by Ulf Adams https://github.com/ulfjack/ryu.
   It is dual-licensed under {Apache License 2.0}[rdoc-ref:@Apache+License+2.0] OR
   {Boost Software License 1.0}[rdoc-ref:@Boost+Software+License+1.0].
@@ -1071,21 +1070,21 @@ mentioned below.
 
 >>>
       Boost Software License - Version 1.0 - August 17th, 2003
-    
+
       Permission is hereby granted, free of charge, to any person or organization
       obtaining a copy of the software and accompanying documentation covered by
       this license (the "Software") to use, reproduce, display, distribute,
       execute, and transmit the Software, and to prepare derivative works of the
       Software, and to permit third-parties to whom the Software is furnished to
       do so, all subject to the following:
-    
+
       The copyright notices in the Software and this entire statement, including
       the above license grant, this restriction and the following disclaimer,
       must be included in all copies of the Software, in whole or in part, and
       all derivative works of the Software, unless such copies or derivative
       works are solely in the form of machine-executable object code generated by
       a source language processor.
-    
+
       THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
       IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
       FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT