Added 'ref' plugin
diff --git a/plugins/ref.plugin.bash b/plugins/ref.plugin.bash
new file mode 100644
index 0000000..0c93d70
--- /dev/null
+++ b/plugins/ref.plugin.bash
@@ -0,0 +1,36 @@
+ref() {
+ if [ ! -d "$REF_DIR" ]
+ then
+ mkdir -p "$REF_DIR"
+ fi
+
+ REF_DIR=${REF_DIR%/}
+
+ if [ "$1" = 'ls' ]
+ then
+ if [ "$2" = '' ]
+ then
+ builtin cd "$REF_DIR"
+ ls -G
+ builtin cd - > /dev/null
+ return
+ else
+ builtin cd "$REF_DIR"/"$2"
+ ls -G
+ builtin cd - > /dev/null
+ return
+ fi
+ fi
+
+ DIR="${1}/${2}"
+
+ builtin cd "$REF_DIR"/"$DIR"
+
+ if [ $(uname) = "Darwin" ]
+ then
+ open index.html
+ elif [ $(uname) = "Linux" ]
+ then
+ gnome-open index.html
+ fi
+}