README.md in trackler-2.2.1.69

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 #### Test Specific Assignment
 Pass the exercise name to make script to run the tests for a specific exercise:
 
     make test-assignment ASSIGNMENT=hello-world
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 ## Contributing Guide
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-For an in-depth discussion of how exercism language tracks and exercises work, please see the [contributing guide](https://github.com/exercism/x-api/blob/master/CONTRIBUTING.md#the-exercise-data)
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+For an in-depth discussion of how exercism language tracks and exercises work, please see [CONTRIBUTING.md](https://github.com/exercism/ecmascript/blob/master/CONTRIBUTING.md)