Tweaks to docs, fix some edge cases

What's Changed

• why modguard by @caelean in #14
• Formatting changes, some wording tweaks by @emdoyle in #15
• Add icons and social links by @emdoyle in #16
• Use containing node for end_lineno when finding assignment members by @emdoyle in #17
• bump release by @caelean in #18
• Fix module to file path with case sensitive import situations by @emdoyle in #19
• Add gif by @emdoyle in #20

Full Changelog: 0.6.0...0.6.1