Temporarily remove broken link to fix build (#3806)

Fix build, which is currently failing because the permissions of the
spec meetings notes file changed:
https://docs.google.com/document/d/1pdvPeKjA8v8w_fGKAN68JjWBmVJtPCpqdi9IZrd6eEo/edit

Author: jack-berg

README.md

@@ -21,10 +21,11 @@ For details, see [CONTRIBUTING.md](CONTRIBUTING.md), in particular read
 
 Questions that need additional attention can be brought to the regular
 specifications meeting. EU and US timezone friendly meeting is held every
-Tuesday at 8 AM Pacific time. Meeting notes are held in the [Google
-doc](https://docs.google.com/document/d/1pdvPeKjA8v8w_fGKAN68JjWBmVJtPCpqdi9IZrd6eEo).
-APAC timezone friendly meetings are held on request. See
-[OpenTelemetry calendar](https://github.com/open-telemetry/community#calendar).
+Tuesday at 8 AM Pacific time. Meeting notes are held in the Google
+doc `https://docs.google.com/document/d/1pdvPeKjA8v8w_fGKAN68JjWBmVJtPCpqdi9IZrd6eEo` (
+TODO: restore link when document permissions are fixed). APAC timezone friendly
+meetings are held on request.
+See [OpenTelemetry calendar](https://github.com/open-telemetry/community#calendar).
 
 Escalations to technical committee may be made over the
 [e-mail](https://github.com/open-telemetry/community#tc-technical-committee).