Fix tiny typo in README.md

Author: stephane

README.md

@@ -26,7 +26,7 @@ $ python setup.py install
 
 
 ### Testing and Code Coverage
-We require 100% code coverage in our uint tests. We run all the unit tests with tox.
+We require 100% code coverage in our unit tests. We run all the unit tests with tox.
 This will test against python2.7, and 3.5 (although not tested, python3.3 and 3.4
 should also be fully supported). Running tox will print out a code coverage report
 ```