API doc generator mishandles linking for QuickPick<T> and friends

[gjsjohnmurray]

1. Go to https://code.visualstudio.com/api/references/vscode-api
2. Search in the page for the text createQuickPick to find the doc for this function of the vscode.window object.
3. Observe that the return type QuickPick<T> is marked up as two hyperlinks:

4. Click on the first, which seeks a non-existent in-page anchor QuickPick so nothing happens.
5. Similarly the second one seeks anchor T that doesn't exist.

I guess this is a result of the API generator not treating FooBar<T> as a special case that should be wrapped in a single link to #FooBar<T> instead of creating the two links that are appropriate for non-T cases such as the return type of provideRenameEdits, which is ProviderResult<WorkspaceEdit>.

Fixing this would significantly improve API navigation for extension developers.

[ntrogh]

Thanks for pointing this out @gjsjohnmurray. I'll take it up with the team.