stub_template (#369)

* remove example.sh stub; add stub_template

* renamed to exercise_stub

* revised

* shortened version

* used Bash the proper noun for the language not the executable

* removed link

* added quotes to raw

* indent blcok in main

Author: guygastineau

_template/example.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+# This stub should help you get started:
+# - Bash is flexible. You may use functions or write a "raw" script.
+#
+# - Complex code can be made easier to read by breaking it up
+#   into functions, however this is sometimes overkill in bash.
+#
+# - You can find links about good style and other resources
+#   for Bash in './README.md'. It came with this exercise.
+#
+#   Example:
+#   # other functions here
+#   # ...
+#   # ...
+#
+#   main () {
+#     # your main function code here
+#   }
+#
+#   # call main with all of the positional arguments
+#   main "$@"
+#
+# *** REMOVE THIS STUB BEFORE SUBMITTING YOUR SOLUTION FOR MENTORING ***