* README.md: Add a link to the Guide of new contributors.
Suggested-by: Jamal Hadi Salim <jhs@mojatatu.com>
Please read the file [INSTALL-git](INSTALL-git.md) for installation instructions.
+Please take a look at [the guide for new contributors](https://strace.io/wiki/NewContributorGuide) if you want to get involved in strace development.
+
The user discussion and development of strace take place on [the strace mailing list](https://lists.strace.io/mailman/listinfo/strace-devel) -- everyone is welcome to post bug reports, feature requests, comments and patches to strace-devel@lists.strace.io. The mailing list archives are available at https://lists.strace.io/pipermail/strace-devel/ and other archival sites.
The GIT repository of strace is available at [GitHub](https://github.com/strace/strace/) and [GitLab](https://gitlab.com/strace/strace/).