update CONTRIBUTING web README link

Author: dylhack

CONTRIBUTING.md

@@ -3,7 +3,7 @@
 This is a monorepo, each project has a README that outlines 
 how to get up and running. To get started setup the API and Frontend projects.
 
-- [Frontend](./src/TTX.App/README.md)
+- [Frontend](./src/TTX.Web/README.md)
 - [App](./src/TTX.App/README.md) The core logic of TTX.
   - [Api](./src/TTX.Api/README.md) Controllers, Websocket, and session management.
   - [Infra](./src/TTX.Infrastructure/README.md) External services, events,