Disable linkcheck for gnu.org

Author: Gold856

docs/source/conf.py

@@ -144,7 +144,7 @@ def setup(app):
 
 # Excluded links for linkcheck
 # These should be periodically checked by hand to ensure that they are still functional
-linkcheck_ignore = [R"https://www.raspberrypi.com/software/", R"http://10\..+"]
+linkcheck_ignore = [R"https://www.raspberrypi.com/software/", R"http://10\..+", R"https://gnu.org/"]
 
 token = os.environ.get("GITHUB_TOKEN", None)
 if token: