Fix check-links

Author: vidartf

.travis.yml

@@ -27,7 +27,7 @@ script:
   - py.test
   - npm test
   # Check links in markdown files:
-  - python -m pytest_check_links -k .md
+  - python -m pytest_check_links --links-ext=.md -o testpaths=. -o addopts=
   # Check docs can be build + links
   - pushd docs
   - make html

{{cookiecutter.github_project_name}}/.travis.yml

@@ -63,7 +63,7 @@ script:
       make html || EXIT_STATUS=$?
       make linkcheck || EXIT_STATUS=$?
       cd ..
-      python -m pytest_check_links || EXIT_STATUS=$?
+      python -m pytest_check_links --links-ext=.md -o testpaths=. -o addopts= || EXIT_STATUS=$?
       (exit $EXIT_STATUS)
     fi
 after_success: