chore(docs): update TOC

CONTRIBUTING.md

@@ -10,10 +10,14 @@ In this guide we're going to go through how the steps for each kind of contribut
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-- [Steps to Make Your First Submission](#steps-to-make-your-first-submission)
-- [Commit Style](#commit-style)
-- [Test Jina Locally and on CI](#test-jina-locally-and-on-ci)
-- [Build Documentation Locally](#build-documentation-locally)
+- [Before you Start](#before-you-start)
+- [Bugs and Issues](#bugs-and-issues)
+- [Making Your First Submission](#making-your-first-submission)
+- [Naming Conventions](#naming-conventions)
+- [Testing Jina Locally and on CI](#testing-jina-locally-and-on-ci)
+- [Building Documentation Locally](#building-documentation-locally)
+- [Getting Support](#getting-support)
+- [Thank You](#thank-you)
 
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