Update README.md

Author: ViralBShah

README.md

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 # OpenLibm
 
-[![Travis](https://travis-ci.org/JuliaMath/openlibm.svg?branch=master)](https://travis-ci.org/JuliaMath/openlibm)
-[![AppVeyor](https://ci.appveyor.com/api/projects/status/sia04r4089rr19uc/branch/master?svg=true)](https://ci.appveyor.com/project/ararslan/openlibm-19152/branch/master)
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 [OpenLibm](https://openlibm.org/) is an effort to have a high quality, portable, standalone
 C mathematical library ([`libm`](http://en.wikipedia.org/wiki/libm)).
 It can be used standalone in applications and programming language