Fix broken links in generated groovydocs

[jamesfredley]

Issue description

Issue description

Broken links can be identified and verified as fixed using https://github.com/lycheeverse/lychee/releases/.

./gradlew grails-doc:build
cd \grails-doc\build\docs\
lychee-x86_64-windows.exe . --format markdown --output results.md --exclude ".*.css$" --exclude "^http://localhost"

review results.md

[jamesfredley]

@sanjana2505006

[sanjana2505006]

Hello @jamesfredley,
thank you for the ping! I’ll start looking into the broken groovydocs links and follow the steps outlined to identify and fix them.

[sanjana2505006]

I’ve raised PR #15327 for this. Please let me know if you have any feedback or would like any changes I’d be happy to update it.