Fix typos in example monorepo documentation. (facebook#4164)

Author: bradfordlemley

packages/react-scripts/template/README.md

@@ -1874,14 +1874,24 @@ monorepo/
  "private": true
  app1/
  package.json:
- "dependencies": ["@myorg/comp1": ">=0.0.0", "react": "^16.2.0"],
- "devDependencies": ["react-scripts": "2.0.0"]
+ "dependencies": {
+ "@myorg/comp1": ">=0.0.0",
+ "react": "^16.2.0"
+ },
+ "devDependencies": {
+ "react-scripts": "2.0.0"
+ }
  src/
  app.js: import comp1 from '@myorg/comp1';
  app2/
  package.json:
- "dependencies": ["@myorg/comp1": ">=0.0.0", "react": "^16.2.0"],
- "devDependencies": ["react-scripts": "2.0.0"]
+ "dependencies": {
+ "@myorg/comp1": ">=0.0.0",
+ "react": "^16.2.0"
+ },
+ "devDependencies": {
+ "react-scripts": "2.0.0"
+ }
  src/
  app.js: import comp1 from '@myorg/comp1';
  comp1/
@@ -1893,8 +1903,12 @@ monorepo/
  package.json:
  "name": "@myorg/comp2",
  "version": "0.1.0",
- "dependencies": ["@myorg/comp1": ">=0.0.0"],
- "devDependencies": ["react": "^16.2.0"]
+ "dependencies": {
+ "@myorg/comp1": ">=0.0.0"
+ },
+ "devDependencies": {
+ "react": "^16.2.0"
+ }
  index.js: import comp1 from '@myorg/comp1'
 ```
 * Monorepo tools work on a package level, the same level as an npm package.