update docs.json dev section structure

Author: guchenhe

docs.json

@@ -283,7 +283,7 @@
                   "icon": "code-pull-request",
                   "groups": [
                     {
-                      "group": "Getting Started with Dify Plugins",
+                      "group": "Getting Started",
                       "pages": [
                         "plugin-dev-en/0111-getting-started-dify-plugin",
                         "plugin-dev-en/0111-cli"
@@ -323,8 +323,14 @@
                       ]
                     },
                     {
-                      "group": "Development Guides",
+                      "group": "Development Guides & Walkthroughs",
                       "pages": [
+                        "plugin-dev-en/0131-cheatsheet",
+                        "plugin-dev-en/0222-tool-plugin",
+                        "plugin-dev-en/0222-tool-oauth",
+                        "plugin-dev-en/0222-datasource-plugin",
+                        "plugin-dev-en/0222-trigger-plugin",
+                        "plugin-dev-en/0222-creating-new-model-provider",
                         "plugin-dev-en/0432-develop-a-slack-bot-plugin",
                         "plugin-dev-en/0432-endpoint",
                         "plugin-dev-en/0432-develop-flomo-plugin",