chore: organize sidebar

Author: nud3l

docs/_sidebar.md

@@ -1,46 +1,51 @@
 <!-- docs/_sidebar.md -->
 
-
 * **Kintsugi (Kusama)**
 
   * [Overview](kintsugi/overview.md)
   * [Crowdloans](kintsugi/crowdloans.md)
   * [Tokenomics](kintsugi/tokenomics.md)
   * [Governance](kintsugi/governance.md)
+
 ---
 
 * **interBTC (Testnet)**
 
-* Getting Started
-
   * [Overview](start/overview.md)
   * [Getting Started](start/prereq.md)
   * [Issue interBTC](start/issue.md)
   * [Redeem interBTC](start/redeem.md)
   * [FAQ](start/faq.md)
 
-* Vaults
+---
+
+* **Clients**
+
+* *Vaults*
 
   * [Overview](vault/overview.md)
   * [Installation](vault/installation.md)
   * [Upgrading](vault/upgrading.md)
   * [Operating Guide](vault/guide.md)
   * [FAQ](vault/faq.md)
 
-* Collators
+* *Collators*
 
   * [Overview](collator/overview.md)
   * [Installation](collator/guide.md)
   * [FAQ](collator/faq.md)
 
-* Developers
+---
+
+* **Developers**
 
   * [Interacting with interBTC](developers/integration.md)
   * [Documentation](developers/documentation.md)
 
+---
 
 * [Roadmap](about/roadmap.md)
 
-* [Formal specification](https://spec.interlay.io/)
+* [Formal Specification](https://spec.interlay.io/)
 
-* [Glossary](glossary/glossary.md)
+* [Glossary](glossary/glossary.md)