fix(docs): eliminate ~222 SEO redirect chains on docs.mem0.ai (#4768)

docs/migration/oss-to-platform.mdx

@@ -28,7 +28,7 @@ Move your Mem0 implementation to managed infrastructure with enterprise features
 
 ## Plan
 
-1. **Sign up**: Create an account on [Mem0 Platform](https://app.mem0.ai).
+1. **Sign up**: Create an account on <a href="https://app.mem0.ai" rel="nofollow">Mem0 Platform</a>.
 2. **Get API Key**: Navigate to **Settings > API Keys** and generate a new key.
 3. **Review Usage**: Identify where you instantiate `Memory` and where you call `search` or `get_all`.
 
@@ -368,7 +368,7 @@ If you encounter issues, you can revert immediately by switching your import bac
 
 ## Next Steps
 
-- [Platform Dashboard](https://app.mem0.ai) - Monitor usage and manage settings.
+- <a href="https://app.mem0.ai" rel="nofollow">Platform Dashboard</a> - Monitor usage and manage settings.
 - [Webhooks Setup](/platform/features/webhooks) - Configure real-time event notifications.
 - [Organizations & Projects](/api-reference/organizations-projects) - Set up multi-tenancy for your team.