Add Tools and Utilities section to table of contents

Author: maythamfahmi

docs/toc.yml

@@ -5,4 +5,6 @@
 - name: Migration Guide from v2.x to v3.x
   href: migration.md
 - name: Examples of Use
-  href: examples.md
+  href: examples.md
+- name: Tools and Utilities
+  href: tooling.md