docs: add coverage-simple-excludes to the docs

Author: nedbat

doc/other.rst

@@ -7,7 +7,6 @@
 Other resources
 ===============
 
-
 There are a number of projects that help integrate coverage.py into other
 systems, provide help using it, offer assistance, and so on.
 
@@ -18,6 +17,7 @@ a pull request`_ or `get in touch`_ some other way.
 .. _open a pull request: https://github.com/nedbat/coveragepy/blob/master/doc/other.rst
 .. _get in touch: https://nedbatchelder.com/site/aboutned.html
 
+
 Test runners
 ------------
 
@@ -47,6 +47,11 @@ Tools to provide more control over how coverage is configured.
 
   __ https://github.com/wemake-services/coverage-conditional-plugin
 
+* `coverage-simple-excludes`__ defines new comment formats for excluding code
+  based on Python versions and operating system.
+
+  __ https://pypi.org/project/coverage-simple-excludes/
+
 
 Language plugins
 ----------------