Updated SC2129 (markdown)

SC2129.md

@@ -23,6 +23,10 @@ cat stuff  >> file
 
 Rather than adding `>> something` after every single line, you can simply group the relevant commands and redirect the group.
 
-### Exceptions
+### Exceptions:
 
 This is mainly a stylistic issue, and can freely be ignored.
+
+### Related resources:
+
+* [BashFaq: How can I redirect the output of multiple commands at once?](https://mywiki.wooledge.org/BashFAQ/014)