Merge pull request alirizaadiyahsi#123 from alirizaadiyahsi/dev

v0.4.0

Merge pull request alirizaadiyahsi#106 from alirizaadiyahsi/dev

v0.3.0 merge

Merge pull request alirizaadiyahsi#94 from alirizaadiyahsi/dev

v0.2.0 release

Typo fixing