Rollup merge of rust-lang#135189 - Urgau:triagebot-html-ignored, r=lqd

Remove workaround from pull request template

This PR removes the workaround (`\`) from our pull request template as triagebot/rustbot now ignores HTML blocks.

cf. rust-lang/triagebot#1869
cc `@jieyouxu`
r? `@ehuss`

.github/pull_request_template.md

@@ -7,6 +7,6 @@ tracking issue or there are none, feel free to ignore this.
 This PR will get automatically assigned to a reviewer. In case you would like
 a specific user to review your work, you can assign it to them by using
 
-    r\? <reviewer name> (with the `\` removed)
+    r? <reviewer name>
 -->
 <!-- homu-ignore:end -->