chore: Fix markdownlint error

Author: kaylareopelle

.github/ISSUE_TEMPLATE/bug_report.md

@@ -76,4 +76,4 @@ end
 OpenTelemetry.tracer_provider.shutdown
 ```
 
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+<sub>**Tip**: [React](https://github.blog/news-insights/product-news/add-reactions-to-pull-requests-issues-and-comments/) with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding `+1` or `me too`, to help us triage it. Learn more [in our end user docs](https://opentelemetry.io/community/end-user/issue-participation/).</sub>