Added documentation for ref plugin

plugins/ref.plugin.bash

@@ -1,3 +1,27 @@
+#####################################################################################################################################################################
+# README 																																							#
+# ------ 																																							#
+# 																																									#
+# ref is a plugin for storing HTML formatted references, mainly suited for programming. 																			#
+# Your $REF_DIR variable is the directory for storing these references in. If it does not exist, it will be created automatically. 									#
+# Here is an example of what my $REF_DIR looks like, because this will be of use when I explain how your $REF_DIR has to be structured: 							#
+# 																																									#
+# ~/.ref/ 																																							#
+#   ruby/ 																																							#
+#       general/ 																																					#
+#  			index.html 																																				#
+# 	bash/ 																																							#
+# 		array/ 																																						#
+# 			index.html 																																				#
+# 		select/ 																																					#
+# 			index.html 																																				#
+# 																																									#
+# This is what the basic structure of your $REF_DIR should look like: Subdirectories for each subject, and then another set of subdirectories for the part of the   #
+# subject you want to reference. And in the second subdirectory, an index.html file. 																				#
+# 																																									#
+# I hope that you like this plugin and if you have any questions about it, send me (mrman208) a message on GitHub or email me at mrman208@me.com 					#
+#####################################################################################################################################################################
+
 ref() {
 	if [ ! -d "$REF_DIR" ]
 	then