v1.2.0 - Adds short flags and accept .yml or .yaml file extension

What's Changed

• docs: remove incorrect info in usage help fzz -h by @cristianoliveira in #91
• docs: update project explanation by @cristianoliveira in #93
• feat: short flag for --config command by @cristianoliveira in #96
• feat: load both .yaml & .yml by @cristianoliveira in #98

Full Changelog: v1.1.1...v1.2.0