Improve docs + cleanup the git code

• Refactor git operations
• Add a usage gif to the README

Changes: v0.0.5...v0.0.6

Fix UnhandledPromiseRejectionWarning

• Fixed bug Setting mob gives UnhandledPromiseRejectionWarning #4

Changes: v0.0.4...v0.0.5

Proudly wear the npm badge

Changes: v0.0.3...v0.0.4

Document installation

Changes: v0.0.2...v0.0.3

Proof of concept

Changes: e8a3a41...v0.0.2