Release -v2.1.0 for JitPack delivery

What's Changed

• Range validation showing error in float type by @AliAzaz in #7
• Implemented builder pattern modification by @AliAzaz in #8
• Updated example with readme by @AliAzaz in #10
• Gradle update, Bugs Fixes, & Functionality changes by @AliAzaz in #12

New Contributors

• @AliAzaz made their first contribution in #7

Special Thanks

Thanks to people who have raised bugs #2 and #9.

Full Changelog: 2.0.0...Release-v2.1.0