feat(jest): add compatibility with jest

README.md

@@ -8,10 +8,12 @@
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-A huge library of test assertion matchers for a range of common use-cases, to improve the readability of tests written using the [Jasmine testing framework](http://jasmine.github.io/) from [Pivotal Labs](http://pivotallabs.com/).
+|**What**|A huge library of test matchers for a range of common use-cases, compatible with all versions of [Jasmine](http://jasmine.github.io/) and [Jest](http://facebook.github.io/jest/).|
+|---|:---|
+|**Why**|Custom Matchers make tests easier to read and produce relevant and useful messages when they fail.|
+|**How**|By avoiding vague messages such as _"expected false to be true"_ in favour of useful cues such as _"expected 3 to be even number"_ and avoiding implementation noise such as `expect(cycleWheels % 2 === 0).toEqual(true)` in favour of simply stating that you `expect(cycleWheels).toBeEvenNumber()`.|
 
-1. **Make failing tests easier to debug** by avoiding vague messages such as _"expected false to be true"_ in favour of useful cues such as _"expected 3 to be even number"_.
-2. **Make tests easier to read** by avoiding implementation noise such as `expect(cycleWheels % 2 === 0).toEqual(true)` in favour of simply stating that you `expect(cycleWheels).toBeEvenNumber()`.
+> Jasmine Matchers is written using the [add-matchers](https://github.com/JamieMason/add-matchers) library. If you have some useful matchers of your own that you could share with other Jest and Jasmine users, please give it a try.
 
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