Add placeholders where old template READMEs used to be (facebook#7972)

Author: iansu

packages/react-dev-utils/printHostingInstructions.js

@@ -39,7 +39,7 @@ function printHostingInstructions(
  console.log();
  console.log('Find out more about deployment here:');
  console.log();
- console.log(` ${chalk.yellow('https://create-react-app.dev/docs/deployment')}`);
+ console.log(` ${chalk.yellow('bit.ly/CRA-deploy')}`);
  console.log();
 }
 

packages/react-scripts/template-typescript/README.md

@@ -0,0 +1 @@
+This file has moved [here](https://github.com/facebook/create-react-app/blob/master/packages/cra-template-typescript/template/README.md)

packages/react-scripts/template/README.md

@@ -0,0 +1 @@
+This file has moved [here](https://github.com/facebook/create-react-app/blob/master/packages/cra-template/template/README.md)