Add an example of correct code in Bash

SC2112.md

@@ -18,6 +18,15 @@ hello() {
 }
 ```
 
+The `function` keyword is a feature of Bash and Ksh, so code that uses it may be intended to be a Bash or Ksh script instead:
+
+```sh
+#!/bin/bash
+function hello() {
+  echo "Hello World"
+}
+```
+
 ### Rationale:
 
 `function` is a non-standard keyword that can be used to declare functions in Bash and Ksh.
@@ -30,4 +39,5 @@ None.
 
 ### Related resources:
 
-* Help by adding links to BashFAQ, StackOverflow, man pages, POSIX, etc!
+* [Function Definition Command](https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_09_05) in the POSIX spec
+* [Shell Functions](https://www.gnu.org/software/bash/manual/html_node/Shell-Functions.html) in the Bash manual