Fix linkcheck

Author: hugovk

docs/conf.py

@@ -55,6 +55,8 @@
     # The crawler gets "Anchor not found"
     r"https://github.com.+?#.*",
     r"https://hackmd\.io/[^?]+\?[^#]+#.+",
+    # Google Meet gives 404
+    r"https://meet.google.com/.*"
     # RTD preview builds:
     r"https://[a-zA-Z0-9.-]+\.org\.readthedocs\.build/[a-zA-Z0-9.-]+/[a-zA-Z0-9.-]+/",
     # Deleted pages: