chore: Add subscript to issue templates (#2966)

Co-authored-by: otelbot <[email protected]>

Author: opentelemetrybot

.github/ISSUE_TEMPLATE/bug_report.md

@@ -31,3 +31,4 @@ If possible, provide a recipe for reproducing the error.
 Add any other context about the problem here.
 -->
 
+<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 [here](https://opentelemetry.io/community/end-user/issue-participation/).</sub>

.github/ISSUE_TEMPLATE/discussion.md

@@ -11,3 +11,5 @@ labels: discussion
 - [ ] This only affects the JavaScript OpenTelemetry library
 - [ ] This may affect other libraries, but I would like to get opinions here first
 
+<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 [here](https://opentelemetry.io/community/end-user/issue-participation/).</sub>
+

.github/ISSUE_TEMPLATE/feature_request.md

@@ -31,3 +31,5 @@ A clear and concise description of any alternative solutions or features you've
 Add any other context or screenshots about the feature request here.
 -->
 
+<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 [here](https://opentelemetry.io/community/end-user/issue-participation/).</sub>
+

.github/ISSUE_TEMPLATE/instrumentation_request.md

@@ -34,3 +34,5 @@ Any code-owners listed MUST fulfill all criteria laid out in the checklist below
 <!--
 Add any other context or screenshots about the instrumentation request here. Is there a reference you could point for the well-defined lifecycle methods?
 -->
+
+<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 [here](https://opentelemetry.io/community/end-user/issue-participation/).</sub>

.github/ISSUE_TEMPLATE/ownership_request.md

@@ -38,3 +38,5 @@ Examples:
 <!--
 Add any other context that does not fit any of the above sections
 -->
+
+<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 [here](https://opentelemetry.io/community/end-user/issue-participation/).</sub>