Write help docs for the plugin

[bruno-]

Hi @juvenn , @nono ,
I suggest writing vim documentation for this plugin - another thing to do before trying to submit to vim source.
Here are some sections that would be helpful:

• matchit support - describe how % command can be used in mustache / handlebars files
• mustache / handlebars abbreviations and how to enable them
• section movement (we could reuse a lot from README file)
• text objects / operator pending mappings if it gets merged (we could reuse from README file)
• syntax help docs. A good example of this is :h html

I'm willing to work on this, but mostly over the weekends when I have time.
Let me know what you think?

[juvenn]

+2 :)