feat: making docusign docs public (DataDog#24083)

Author: guttymora

docusign/manifest.json

@@ -3,7 +3,7 @@
   "app_uuid": "06b018f6-ef33-418e-b745-5e6d6a405731",
   "app_id": "docusign",
   "owner": "saas-integrations",
-  "display_on_public_website": false,
+  "display_on_public_website": true,
   "tile": {
     "overview": "README.md#Overview",
     "configuration": "README.md#Setup",