update redirects (#396)

Author: ericbrown99

docs/docs.json

@@ -2607,19 +2607,27 @@
     },
     {
       "source": "/base-app/miniapps/existing-app-integration",
-      "destination": "/mini-apps/quickstart/existing-apps/install"
+      "destination": "/mini-apps/quickstart/migrate-existing-apps"
     },
     {
       "source": "/base-app/build-with-minikit/existing-app-integration",
-      "destination": "/mini-apps/quickstart/existing-apps/install"
+      "destination": "/mini-apps/quickstart/migrate-existing-apps"
     },
     {
       "source": "/base-app/miniapps/quickstart",
-      "destination": "/mini-apps/quickstart/new-apps/install"
+      "destination": "/mini-apps/quickstart/create-new-miniapp"
     },
     {
       "source": "/base-app/build-with-minikit/quickstart",
-      "destination": "/mini-apps/quickstart/new-apps/install"
+      "destination": "/mini-apps/quickstart/create-new-miniapp"
+    },
+    {
+      "source": "/mini-apps/quickstart/existing-apps/:slug*",
+      "destination": "/mini-apps/quickstart/migrate-existing-apps"
+    },
+    {
+      "source": "/mini-apps/quickstart/new-apps/:slug*",
+      "destination": "/mini-apps/quickstart/create-new-miniapp"
     },
     {
       "source": "/base-app/miniapps/mini-apps",