docs(devs-infra): adjust README.md HTTP => HTTPS (#3137)

README.md

@@ -53,7 +53,7 @@ Please read [CONTRIBUTING.md](CONTRIBUTING.md) for details on our code of conduc
 
 ## Versioning
 
-We **DO NOT** use [SemVer](http://semver.org/) for versioning. Though you can think about SemVer when reading our version, except our major number follows the one of Jest. For the versions available, see the [tags on this repository](https://github.com/kulshekhar/ts-jest/tags).
+We **DO NOT** use [SemVer](https://semver.org/) for versioning. Though you can think about SemVer when reading our version, except our major number follows the one of Jest. For the versions available, see the [tags on this repository](https://github.com/kulshekhar/ts-jest/tags).
 
 ## Authors/maintainers