docs(contact-us): minor updates to contact us page (#3186)

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

src/pages/help/contact-us/index.mdx

@@ -58,6 +58,7 @@ GitHub issue.
 #### Code issues
 
 - [@carbon/react](https://github.com/carbon-design-system/carbon/issues/new/choose)
+- [carbon-web-components](https://github.com/carbon-design-system/carbon-web-components/issues/new)
 - [carbon-components-angular](https://github.com/IBM/carbon-components-angular/issues/new)
 - [carbon-components-vanilla](https://github.com/carbon-design-system/carbon/issues/new/choose)
 - [carbon-components-vue](https://github.com/carbon-design-system/carbon-components-vue/issues/new)
@@ -92,8 +93,8 @@ For designer questions:
 [#carbon-design-system](https://ibm-studios.slack.com/messages/C0M053VPT/)
 
 For developer questions:
-[#carbon-components](https://ibm-studios.slack.com/messages/C046Y0YUD/),
-[#carbon-react](https://ibm-studios.slack.com/messages/C2K6RFJ1G/)
+[#carbon-react](https://ibm-studios.slack.com/messages/C2K6RFJ1G/),
+[#carbon-web-components](https://ibm-studios.slack.com/archives/CL83LMKSA)
 
 ### Email