Fix GitHub repository status bar
MODIFY
.gitattributes
.gitattributes
* text=auto
*.cpp text
-*.h text
+*.h text linguist-language=C++
*.md text
*.csv text
*.cmake text
*.pc text
*.in text
-*.tmpl text
+*.tmpl text linguist-language=Jinja2
*.py text
*.ac text
*.am text
+
+tests/doctest.h -diff linguist-vendored
+builds/autoconf/m4/ax_*.m4 -diff linguist-vendored

Fix GitHub repository status bar