docs(cypress): update migration guide

packages/e2e-cypress/README.md

@@ -101,6 +101,8 @@ testRoute('shelfs/*/books');
 
 - We went through many Cypress major versions during this AE beta phase, Cypress v6 was the latest version supported by Qv1 AE, please check out [Cypress 7](https://docs.cypress.io/guides/references/migration-guide#Migrating-to-Cypress-7-0) and [Cypress 8](https://docs.cypress.io/guides/references/migration-guide#Migrating-to-Cypress-8-0) migration guides and adapt your code accordingly
 
+- If you're using TypeScript, update your vue-shims file to match https://github.com/quasarframework/quasar-starter-kit/blob/master/template/src/shims-vue.d.ts
+
 ### Caveats
 
 #### Assertions on Quasar input components