sidebar tweaks

Author: lukegalbraithrussell

docs/english/_sidebar.json

@@ -9,7 +9,7 @@
 	{
 		"type": "category",
 		"label": "Bolt for Java Guides",
-    "collapsed": false,
+		"collapsed": false,
 		"items": [
 			"java-slack-sdk/guides/getting-started-with-bolt",
 			"java-slack-sdk/guides/bolt-basics",
@@ -58,7 +58,7 @@
 	{
 		"type": "category",
 		"label": "Java Slack SDK Guides",
-    "collapsed": false,
+		"collapsed": false,
 		"items": [
 			"java-slack-sdk/guides/web-api-client-setup",
 			"java-slack-sdk/guides/web-api-basics",
@@ -73,12 +73,15 @@
 	{
 		"type": "category",
 		"label": "日本語 (日本)",
+		"link": {
+			"type": "doc",
+			"id": "java-slack-sdk/ja-jp/index"
+		},
 		"items": [
 			"java-slack-sdk/ja-jp/index",
 			{
 				"type": "category",
 				"label": "Bolt for Java",
-				"collapsed": false,
 				"items": [
 					"java-slack-sdk/ja-jp/getting-started-with-bolt",
 					"java-slack-sdk/ja-jp/bolt-basics",
@@ -124,7 +127,6 @@
 			{
 				"type": "category",
 				"label": "Slack API クライアント",
-				"collapsed": false,
 				"items": [
 					"java-slack-sdk/ja-jp/web-api-client-setup",
 					"java-slack-sdk/ja-jp/web-api-basics",