fix: linting check on azure/appveyor (#9781)

seems like current (bit whacky) patterns don't play nice on windows for some reason, let's try different ones

note - there is currently unrelated lint error in `www` so linting should fail - but it should have 1 error instead of thousands of errors on azure/appveyor - with this #9780 should be clear

.gitattributes

@@ -1,3 +1,4 @@
 **/*.js.snap text eol=lf
 **/__testfixtures__/** text eol=lf
 **/__tests__/fixtures/** text eol=lf
+**/*.md text eol=lf

.prettierignore

@@ -16,9 +16,10 @@ www/public
 **/.cache
 
 # ignore built packages
-packages/*/*.js
-packages/gatsby/cache-dir/commonjs
-packages/gatsby/dist
+packages/**/*.js
+!packages/gatsby/cache-dir/**/*.js
+!packages/*/src/**/*.js
+packages/gatsby/cache-dir/commonjs/**/*.js
 
 # fixtures
 **/__testfixtures__/**

CHANGELOG.md

@@ -535,7 +535,7 @@ API changes:
 - The default layout component should be at `layouts/index.js` not
   `layouts/default.js`
   https://github.com/gatsbyjs/gatsby/pull/940#issuecomment-300537162
-- `this.props.children` in layout components is now a _function_
+- `this.props.children` in layout components is now a function
   https://github.com/gatsbyjs/gatsby/pull/940#issuecomment-300878300
 - Change the default port for serve-build to 9000
 - Change the path to GraphiQL to `/___graphql`