Merge pull request mapbox#25 in ONE/jest-image-snapshot from feature/…

…add-link-to-blog-post to master

* commit '753c24cd7d6e4d387a62e25b2a46799aa44dfe2d':
  docs(readme): add link to tech blog post
  fix(package): support jest v23 (mapbox#81)

README.md

@@ -11,7 +11,7 @@ Jest matcher that performs image comparisons using [pixelmatch](https://github.c
   npm i --save-dev jest-image-snapshot
   ```
 
-  Please note that `Jest` `>=20 <=22` is a peerDependency. `jest-image-snapshot` will **not** work with anything below Jest 20.x.x
+  Please note that `Jest` `>=20 <=23` is a peerDependency. `jest-image-snapshot` will **not** work with anything below Jest 20.x.x
 
 ## Usage:
 1. Extend Jest's `expect`
@@ -29,7 +29,7 @@ Jest matcher that performs image comparisons using [pixelmatch](https://github.c
   });
 ```
 
-See [the examples](./examples/README.md) for more detailed usage
+See [the examples](./examples/README.md) for more detailed usage or read about an example use case in the [American Express Technology Blog](https://americanexpress.io/smile-for-the-camera/)
 
 ### Optional configuration:
 

package.json

@@ -46,7 +46,7 @@
     "eslint": "^4.15.0",
     "eslint-config-amex": "^7.0.0",
     "is-png": "^1.1.0",
-    "jest": "^22.0.0",
+    "jest": "^23.0.0",
     "mock-spawn": "^0.2.6"
   },
   "dependencies": {
@@ -59,6 +59,6 @@
     "rimraf": "^2.6.2"
   },
   "peerDependencies": {
-    "jest": ">=20 <=22"
+    "jest": ">=20 <=23"
   }
 }