sh: Add alias for vim notes

Added alias that directly opens my vim notes index.
Will only work with my own zettelkasten plugin,
however.

sh/.config/sh/alias

@@ -19,6 +19,8 @@ else
     alias v="vi"
     alias vim="vi"
 fi
+# open notes with my vim zettelkasten plugin
+alias vn='v +"lua require \"zettelkasten\".index_open()"'
 
 # exit shell mimicks vim
 alias :q="exit"