Merge pull request #274 from OWASP/izar-patch-5

Update README.md

Author: izar

README.md

@@ -1,5 +1,5 @@
 ![build+test](https://github.com/izar/pytm/workflows/build%2Btest/badge.svg)
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+[![OpenSSF Best Practices](https://www.bestpractices.dev/projects/11093/badge)](https://www.bestpractices.dev/projects/11093)
 
 # pytm: A Pythonic framework for threat modeling