more notes about the ikiwiki-nav plugin

added installation notes

added pointer in the forum page to the created tip

doc/forum/navigation_of_wiki_pages_on_local_filesystem_with_vim.mdwn

@@ -1,3 +1,7 @@
+**UPDATE** I have created a [[page|tips/follow_wikilinks_from_inside_vim]] in
+the tips section about the plugin, how to get it, install it and use it. Check
+that out. --[[jerojasro]]
+
 I wrote a vim function to help me navigate the wiki when I'm editing it. It extends the 'gf' (goto file) functionality. Once installed, you place the cursor on a wiki page name and press 'gf' (without the quotes); if the file exists, it gets loaded.
 
 This function takes into account the ikiwiki linking rules when deciding which file to go to.

doc/tips/follow_wikilinks_from_inside_vim.mdwn

@@ -23,6 +23,10 @@ move into
   * `:IkiNextWikiLink 0` will look forward for the wikilink 
   * `:IkiNextWikiLink 1` will look backwards for the wikilink 
 
+## Installation
+
+Copy the `ikiwiki_nav.vim` file to your `.vim/ftplugin` directory.
+
 ## Current issues: 
 
   * The plugin only works for wikilinks contained in a single text line;