Docs

[danalex97]

Documentation Update

Summary: Added a more broad documentation and contribution guidelines.

Changes: I have added:

• an architecture general explanation with details
• modified the README
• PR and ISSUE templates
• contribution guidelines
• usage and motivation sections

Checklist:

• [x] Tested the code - N/A
• [x] Commented my code - N/A
• [x] Changed the documentation

[coveralls]

Pull Request Test Coverage Report for Build 160

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 10 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.6%) to 81.054%

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Files with Coverage Reduction	New Missed Lines	%
underlay/router.go	10	84.68%
<!--	Total:	10		-->

Totals
Change from base Build 156:	-0.6%
Covered Lines:	1292
Relevant Lines:	1594

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💛 - Coveralls