[Dev Deps] update markdownlint-cli

Author: ljharb

README.md

@@ -1590,6 +1590,7 @@ Other Style Guides
 
     const isJedi = getProp('jedi');
     ```
+
   <a name="es2016-properties--exponentiation-operator"></a>
   - [12.3](#es2016-properties--exponentiation-operator) Use exponentiation operator `**` when calculating exponentiations. eslint: [`no-restricted-properties`](https://eslint.org/docs/rules/no-restricted-properties).
 
@@ -1703,6 +1704,7 @@ Other Style Guides
       return name;
     }
     ```
+
   <a name="variables--no-chain-assignment"></a><a name="13.5"></a>
   - [13.5](#variables--no-chain-assignment) Don’t chain variable assignments. eslint: [`no-multi-assign`](https://eslint.org/docs/rules/no-multi-assign)
 

linters/.markdownlint.json

@@ -26,7 +26,8 @@
 
   "comment": "MD007: Unordered list indentation: 2 spaces.",
   "ul-indent": {
-    "indent": 2
+    "indent": 2,
+    "start_indented": true
   },
 
   "comment": "MD009: Disallow trailing spaces!",

package.json

@@ -4,6 +4,7 @@
   "description": "A mostly reasonable approach to JavaScript.",
   "scripts": {
     "preinstall": "npm run install:config && npm run install:config:base",
+    "postinstall": "rm -rf node_modules/markdownlint-cli/node_modules/markdownlint",
     "install:config": "cd packages/eslint-config-airbnb && npm prune && npm install",
     "install:config:base": "cd packages/eslint-config-airbnb-base && npm prune && npm install",
     "lint": "markdownlint --config linters/.markdownlint.json README.md */README.md",
@@ -39,6 +40,7 @@
   },
   "homepage": "https://github.com/airbnb/javascript",
   "devDependencies": {
-    "markdownlint-cli": "^0.13.0"
+    "markdownlint": "^0.19.0",
+    "markdownlint-cli": "^0.21.0"
   }
 }

react/README.md

@@ -111,6 +111,7 @@ This style guide is mostly based on the standards that are currently prevalent i
     // good
     import Footer from './Footer';
     ```
+
   - **Higher-order Component Naming**: Use a composite of the higher-order component’s name and the passed-in component’s name as the `displayName` on the generated component. For example, the higher-order component `withFoo()`, when passed a component `Bar` should produce a component with a `displayName` of `withFoo(Bar)`.
 
     > Why? A component’s `displayName` may be used by developer tools or in error messages, and having a value that clearly expresses this relationship helps people understand what is happening.