one period missing

Author: andrewheusser

readme.md

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 <h2>Try it!</h2>
 
-Check out our [repo](https://github.com/ContextLab/hypertools-paper-notebooks) of Jupyter notebooks from the HyperTools [paper](https://github.com/ContextLab/hypertools-paper/blob/master/HeusEtal17.pdf)
+Check out our [repo](https://github.com/ContextLab/hypertools-paper-notebooks) of Jupyter notebooks from the HyperTools [paper](https://github.com/ContextLab/hypertools-paper/blob/master/HeusEtal17.pdf).
 
 <!-- Hypercubes (Example 1 in the HyperTools [paper](www.linktoarchivpaper.com)):