Removes broken docs link from README (#41)

Author: ssfrr

README.md

@@ -4,8 +4,6 @@
 [![appveyor badge][appveyor_badge]][appveyor_url]
 [![codecov badge][codecov_badge]][codecov_url]
 
-## Documentation [here][documenter_latest]
-
 [travis_badge]: https://travis-ci.org/JuliaIntervals/IntervalOptimisation.jl.svg?branch=master
 [travis_url]: https://travis-ci.org/JuliaIntervals/IntervalOptimisation.jl