Merge pull request #36 from DWiechert/master

Added link to contributing guide.
Adding a Best Pratices document for the PackageGuides directory.
A best practices document for the ThemeGuides directory.
A document for best practices for the ConfigurationGuides directory.
Updating the best practices document; linking to the other more specific
documents.
Adding a best practice for configurations.
Adding another best practice.
Adding another best practice for configuration files.
Merge pull request #37 from jbranchaud/more-specific-best-practices

Creating topic specific best practices files and then filling in a few best practices
Added Less description
Merge pull request #38 from grant/patch-1

Added Less description to TechStack.md
A document for describing the default keybindings in Atom.
Adding the first keybinding and its description.
Merge pull request #39 from jbranchaud/default-keybindings

Adding a document for describing the default keybindings.
Update BestPractices.md

Fix broken link to "Best Practices When Configuring Atom"
Merge pull request #41 from felixkiss/patch-1

Update BestPractices.md, fixed link.