Bump testng from 7.5 to 7.5.1 (#11)

Bumps [testng](https://github.com/cbeust/testng) from 7.5 to 7.5.1.
- [Release notes](https://github.com/cbeust/testng/releases)
- [Changelog](https://github.com/testng-team/testng/blob/master/CHANGES.txt)
- [Commits](testng-team/testng@7.5...7.5.1)

---
updated-dependencies:
- dependency-name: org.testng:testng
  dependency-type: direct:production
...

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update README

update README

remove boolean return from assertions

update README

update readme

Release version 1.1.2

update MethodInvoker

update docs

add static field get/set and update version