DOC fix markdown-style link and some wording
@@ -224,16 +224,15 @@ rules before submitting a pull request:
practice and, if possible, compare it to other methods available in
scikit-learn.
- * Documentation and high-coverage tests are necessary for enhancements
- to be accepted.
- Bug-fixes or new features should be provided with
- [non-regression tests](https://en.wikipedia.org/wiki/Non-regression_testing).
- These tests verify the correct behavior of the fix or feature. In this
- manner, further modifications on the code base are granted to be consistent
- with the desired behavior.
- For the Bug-fixes case, at the time of the PR, this tests should fail for
- the code base in master and pass for the PR code.
-
+ * Documentation and high-coverage tests are necessary for enhancements to be
+ accepted. Bug-fixes or new features should be provided with
+ `non-regression tests
+ <https://en.wikipedia.org/wiki/Non-regression_testing>`_. These tests
+ verify the correct behavior of the fix or feature. In this manner, further
+ modifications on the code base are granted to be consistent with the
+ desired behavior. For the case of bug fixes, at the time of the PR, the
+ non-regression tests should fail for the code base in the master branch
+ and pass for the PR code.
* At least one paragraph of narrative documentation with links to
references in the literature (with PDF links when possible) and
