updated issue template

Signed-off-by: Archit Sharma <[email protected]>

Author: iArchitSharma

.github/ISSUE_TEMPLATE/documentation.md

@@ -16,6 +16,5 @@ assignees: ''
 - [Meshery documentation site](https://meshery.layer5.io/docs/)
 - [Meshery documentation source](https://github.com/layer5io/meshery/tree/master/docs)
 - [Instructions for contributing to documentation](https://github.com/layer5io/meshery/blob/master/CONTRIBUTING.md#documentation-contribution-flow)
-- 📚 See [contributing instructions](https://github.com/layer5io/layer5/blob/master/CONTRIBUTING.md). 
 - 🎨 Wireframes and [designs for Layer5 site](https://www.figma.com/file/5ZwEkSJwUPitURD59YHMEN/Layer5-Designs) in Figma [(open invite)](https://www.figma.com/team_invite/redeem/qJy1c95qirjgWQODApilR9) 
 - 🙋🏾🙋🏼 Questions: [Discussion Forum](https://discuss.layer5.io/) and [Community Slack](https://slack.layer5.io/).