added remark (linter for .md files)

Author: natterstefan

.remarkignore

@@ -0,0 +1,4 @@
+tmp
+build
+dist
+coverage

.remarkrc

@@ -0,0 +1,6 @@
+{
+  "plugins": [
+    "remark-preset-lint-recommended",
+    ["remark-lint-list-item-indent", false]
+  ]
+}

CHANGES.md

@@ -14,4 +14,4 @@ adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
   - jest test suite setup
   - ESLint and prettier setup
   - babel setup
-  - styled-components setup
+  - styled-components setup

CONTRIBUTING.md

@@ -1,4 +1,4 @@
 # Contributing
 
 **Working on your first Pull Request?** You can learn how from this *free*
-series [How to Contribute to an Open Source Project on GitHub](https://egghead.io/series/how-to-contribute-to-an-open-source-project-on-github)
+series [How to Contribute to an Open Source Project on GitHub](https://egghead.io/series/how-to-contribute-to-an-open-source-project-on-github)

README.md

@@ -33,6 +33,25 @@ Please, be patient. I will soon add "How to" sections. They are going to tell yo
 
 Stay tuned!
 
+### How to add new dependencies
+
+Adding `devDependencies` looks like this:
+
+```sh
+yarn add <package-name> --dev -W
+```
+
+This will add the dependency too the root `package.json` and make it available
+to all packages.
+
+Adding a new `dependency` for all or one of the packages looks like this:
+
+```sh
+npx lerna add <package-name>
+```
+
+One can read more about the command (eg. how to scope it, etc.) [here](https://github.com/lerna/lerna/tree/master/commands/add).
+
 ### How to test publishing
 
 This repository comes with a pre-configured [verdaccio](https://verdaccio.org/)

package.json

@@ -14,9 +14,10 @@
     "build-storybook": "build-storybook -c .storybook -o dist/storybook",
     "clean": "lerna clean",
     "clean-dist": "lerna run prebuild --stream --parallel",
-    "lint": "yarn lint-css && yarn lint-js",
+    "lint": "yarn lint-css && yarn lint-js && yarn lint-md",
     "lint-css": "stylelint 'packages/**/*.js'",
     "lint-js": "eslint ./packages",
+    "lint-md": "remark .",
     "lint-lerna": "lerna run lint --stream --parallel",
     "prepublishOnly": "yarn clean && yarn && yarn build",
     "publish": "lerna publish",
@@ -95,6 +96,9 @@
     "lint-staged": "^8.1.3",
     "prettier": "^1.16.4",
     "react-scripts": "^2.1.3",
+    "remark-cli": "6.0.1",
+    "remark-lint": "6.0.4",
+    "remark-preset-lint-recommended": "3.0.2",
     "rimraf": "^2.6.3",
     "storybook-addon-jsx": "^6.0.0",
     "storybook-readme": "^4.0.5",