diff --git a/docs/builder/_category_.json b/docs/builder/_category_.json
index 0085891d..0c82173f 100644
--- a/docs/builder/_category_.json
+++ b/docs/builder/_category_.json
@@ -1,5 +1,5 @@
 {
   "label": "Builder",
-  "collapsible": false,
+  "collapsed": false,
   "position": 1
 }
diff --git a/docs/builder/networks/crab.md b/docs/builder/networks/crab.md
index b0cee936..e2ab9a8d 100644
--- a/docs/builder/networks/crab.md
+++ b/docs/builder/networks/crab.md
@@ -5,7 +5,7 @@ title: Crab
 
 Crab Network is a canary network with real economic value for Darwinia, and its positioning is similar to Polkadot's Kusama Network. To expect chaos is a reasonable assumption!
 
-Crab is now a parachain of [Kusama](https://kusama.subscan.io/parachain/2229).
+Crab is now a [parachain of Kusama](https://kusama.subscan.io/parachain/2229).
 
 ## Network Info
 
diff --git a/docs/builder/networks/darwinia.md b/docs/builder/networks/darwinia.md
index d89f0591..8d4bc089 100644
--- a/docs/builder/networks/darwinia.md
+++ b/docs/builder/networks/darwinia.md
@@ -5,7 +5,7 @@ title: Darwinia
 
 Darwinia is a chain based on substrate with cross-chain components, including substrate to ethereum and substrate to substrate. 
 
-Darwinia is now a parachain of [Polkadot](https://polkadot.subscan.io/parachain/2046).
+Darwinia is now a [parachain of Polkadot](https://polkadot.subscan.io/parachain/2046).
 
 ## Network Info
 
diff --git a/docs/protocols/_category_.json b/docs/protocols/_category_.json
index 04530207..a513119a 100644
--- a/docs/protocols/_category_.json
+++ b/docs/protocols/_category_.json
@@ -1,5 +1,5 @@
 {
   "label": "Protocols",
-  "collapsible": false,
+  "collapsed": false,
   "position": 3
 }
diff --git a/docs/relayer/_category_.json b/docs/relayer/_category_.json
index 40fb5d6e..48982b7d 100644
--- a/docs/relayer/_category_.json
+++ b/docs/relayer/_category_.json
@@ -1,5 +1,5 @@
 {
   "label": "Relayer",
-  "collapsible": false,
+  "collapsed": false,
   "position": 2
 }
diff --git a/docusaurus.config.js b/docusaurus.config.js
index 4c65c77e..cce51013 100644
--- a/docusaurus.config.js
+++ b/docusaurus.config.js
@@ -100,6 +100,11 @@ const config = {
         theme: lightCodeTheme,
         darkTheme: darkCodeTheme,
       },
+      algolia: {
+        appId: '5NG98ZN34E',
+        apiKey: '92f99efa90fc8770311839dcc9320fa4',
+        indexName: 'darwinia',
+      }
     }),
 };