Update README.md

README.md

 # Getting started
 This is a project to get started on the gitlab CI for compiling and testing code.
 
-Important links:
+Important things:
 -  Explanations of the YAML syntax of the file **.gitlab-ci.yml** [found here](https://docs.gitlab.com/ce/ci/yaml)
 - Installation of a local runner [found here](https://docs.gitlab.com/runner/install/)
 - commits to not check: add `[CI skip]` in the commit message