Fixing layout of descriptions of standard pages

Change target of setup link from .md to site page

The link worked fine, but directing people to the setup.md file instead of the rendered page means that other links don't work - such as item 12 in the setup page: https://github.com/swcarpentry/lesson-example/blob/gh-pages/setup.md

Update a few files to make this directly readable on github

Fixing reference to 'last episode'

Add reference to _episodes for lesson contribution

Hi,

I added a reference to the _episodes directory where the lesson material is located. As a novice (sort of) to github, it was quite difficult to figure out how to contribute. Hope this helps future contributors.

Adding structure to instructor guides/notes

Updated setup instructions to reflect new GitHub interface & changes to template

Updated the setup instructions to reflect the current GitHub interface,
and small changes to the lesson template files.

Adding accessibility changes from swcarpentry/styles

Adding Google Analytics code

Merge branch 'gh-pages' of https://github.com/swcarpentry/styles into gh-pages to accommodate accessibility changes

Fix display of double curlies using {% raw %}

Fix broken link to training memory lesson

accessibility fixes.

fix search meta tag.

Add label to search box and navigation arrows.

1. Checking that `index.md` has `root` set to '.'
2. Checking that `_config.yml` has `root` set to '..'

Adding link to syllabus (episodes) from setup instructions

Mention that R packages are needed to build example lesson.

1.  Adding link using `page.root`.
2.  Adding ID attribute to syllabus.

Replaces #56.