feat: add markdown to list of stubbed file extensions, update docs

packages/jest-preset-kyt-enzyme/README.md

@@ -1,3 +1,64 @@
 # jest-preset-kyt-enzyme
 
-Jest preset for React projects that use Enzyme to test
+Jest preset for React projects that use Enzyme to test.
+
+## Installation
+
+```
+yarn add --dev jest enzyme jest-preset-kyt-enzyme
+
+// or
+
+npm i --save-dev --save-exact jest enzyme jest-preset-kyt-enzyme
+```
+
+## Setup
+
+In your local Jest config - for instance, `jest.config.js`:
+
+```
+{
+  preset: 'jest-preset-kyt-enzyme'
+}
+```
+
+Features:
+
+* Automatically installs and configures `enzyme-adapter-react-16`
+* Installs and adds `enzyme-to-json/serializer` to `snapshotSerializers`.
+* Installs and sets `testEnvironment` to `jest-environment-jsdom-global`, giving you access to the global `jsdom` object in your tests. This is useful if you want to call `jsdom.reconfigure(opts)` in an arbitrary test file.
+* Installs and configures `raf/polyfill`, which is required by React 16.
+* Automatic `moduleNameMapper` entries/file-stubbing for files with these extensions:
+  ```
+  css|jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga|ico|md
+  ```
+* Sets `cacheDirectory` to `<rootDir>/.caches/jest`, which allows you to build/restore Jest transforms in between CI/CD pipeline runs. Example: using `drone/gcs-cache`:
+
+  ```yaml
+  steps:
+  - name: restore_cache
+    image: homerovalle/drone-gcs-cache:latest
+    settings:
+      bucket: your-custom-name
+      restore: true
+    environment:
+      GCS_CACHE_JSON_KEY:
+        from_secret: a_secret_set_by_you
+
+  - name: test
+    image: node:12.16.2
+    commands:
+    - npm run test-coverage-ci
+
+  - name: rebuild_cache
+    image: homerovalle/drone-gcs-cache:latest
+    settings:
+      bucket: your-custom-name
+      mount:
+      - .caches
+      - coverage
+      rebuild: true
+    environment:
+      GCS_CACHE_JSON_KEY:
+        from_secret: a_secret_set_by_you
+  ```  

packages/jest-preset-kyt-enzyme/jest-preset.js

@@ -2,7 +2,7 @@ const jestConfig = {
   verbose: true,
   moduleFileExtensions: ['js', 'jsx', 'json'],
   moduleNameMapper: {
-    '^[./a-zA-Z0-9!&$_-]+\\.(css|jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga|ico)$': require.resolve(
+    '^[./a-zA-Z0-9!&$_-]+\\.(css|jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga|ico|md)$': require.resolve(
       './stub'
     ),
   },