Remove trailing whitespace characters at the end of lines

donate.html

@@ -17,7 +17,7 @@ permalink: /donate/
       	<a class="btn btn-danger mb-1" href="https://www.patreon.com/privacytools"><i class="fab fa-patreon fa-lg fa-fw"></i> Patreon</a>
       	<a class="btn btn-primary mb-1" href="https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=5G9CBU8P6F4K2"><i class="fab fa-paypal fa-lg fa-fw"></i> PayPal</a>
       </p>
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     </div>
   </div>
   <div class="row">
@@ -70,7 +70,7 @@ permalink: /donate/
         <div class="col-sm-8">
           <input id="XMR" type="text" value="45yJ8LkShLt2f9gCqbBQUcDw7um9XxD2vZ8h2Rt3GoLq9kMrznB3UAHBS1chJk9KjugpBbbJFGtdAeXE5j99wuGxDcbYUri" onclick="this.focus();this.select()" class="form-control input-lg" readonly>
         </div>
-      </div>                              
+      </div>
 
     <div class="text-center">
       <p>We prefer Bitcoin donations to be above $5 due to the state of the network's transaction fees. You are welcome to donate any smaller or larger amount on any other cryptocurrency, such as Bitcoin Cash, Ethereum, or Stellar.</p>
@@ -78,7 +78,7 @@ permalink: /donate/
       <h2>More Cryptocurrencies</h2>
 
     </div>
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     </div>
   </div>
 
@@ -106,7 +106,7 @@ permalink: /donate/
         <div class="col-sm-8">
           <input id="DOGE" type="text" value="DHHPUaDq562BzET6QxhudJepXNDoG7yP12" onclick="this.focus();this.select()" class="form-control input-lg" readonly>
         </div>
-      </div>            
+      </div>
 
       <div class="form-group row">
         <label for="ETC" class="col-sm-4 col-form-label"><strong>Ethereum Classic (ETC)</strong></label>
@@ -239,7 +239,7 @@ permalink: /donate/
         <div class="col-sm-8">
           <input id="WAVES" type="text" value="3PES6AF194L56BuhRwrLF41eAsGzcGDARCi" onclick="this.focus();this.select()" class="form-control input-lg" readonly>
         </div>
-      </div>                  
+      </div>
 
       <div class="form-group row">
         <label for="XEM" class="col-sm-4 col-form-label"><strong>NEM (XEM)</strong></label>