docs: add document for delete project endpoint in README file

Author: mdawoud27

README.md

@@ -88,3 +88,4 @@ base url: `http://localhost:3000`
 - Update a project: `PUT /api/organization/:organizationId/team/:teamId/project/:projectId`
 - Update the project status: `PATCH /api/organization/:organizationId/team/:teamId/project/:projectId/status`
 - Update the project priority: `PATCH /api/organization/:organizationId/team/:teamId/project/:projectId/priority`
+- Delete a project: `DELETE /api/organization/:organizationId/team/:teamId/project/:projectId`