[WIP] Add Getting Started guide

[watson]

Notice: This Pull Request is Work In Progress - Do not merge!

All workshops usually start with a few people who cannot install Node for one reason or another. This PR adds a few new pages in an attempt to guide virgin Node hackers through the jungle to the promised land.

I would appreciate your feedback 😃

Impact

This PR adds two new pages:

• Getting Started (start.html)
• Installing Native Modules (native-modules.html)

It also modifies the content on the front page (index.html) that was related to getting started and instead direct the users to the Getting Started page.

Thoughts

The "Getting Started" page is the most important of the two and will be linked from the main navigation menu (from all pages I guess). The "Installing Native Modules" page isn't that important and I don't think it deserves a menu item of its own. I instead link to it from the "Getting Started" guide. It's also an obvious page to link to when people open issues related to this.

Help wanted

I would especially like help authoring the guide for how Windows users should prepare their system for installing native modules.

Todo

• Prepare i18n data tags
• Add native module guide for Windows
• Check that Debian really need a different installation guide than Ubuntu
• Figure out what to do about the main navigation menu now we have an extra page (spoiler: it's now too big to be on one line)

[MylesBorins]

I'll take a look at this tomorrow and maybe send you a PR to your personal repo

[quindai]

Please add chapter luanda
{
"name": "NodeSchool Luanda",
"location": "Luanda, LDA",
"country": "AO",
"region": "África",
"organizers": ["quindai"],
"website": "http://ti.to/quindai/nodeschool-luanda",
"twitter": "rquindai",
"repo": "http://github.com/nodeschool/luanda"
}

[riyadhalnur]

@quindai, you have to add the chapter JSON yourself in a separate PR. Please use this #565 as an example.

[RichardLitt]

@watson Is this PR something you're still interested in working on?

[watson]

@RichardLitt I don't have the bandwidth at the moment, so anyone are welcome to take it over or it can be closed