Update README.md

README.md

@@ -52,7 +52,7 @@ if you use ORB-SLAM2 (Stereo or RGB-D) in an academic work, please cite:
      }
 
 #2. Prerequisites
-We have tested the library in **Ubuntu 12.04**, **14.04** and **16.06**, but it should be easy to compile in other platforms. A powerful computer (e.g. i7) will ensure real-time performance and provide more stable and accurate results.
+We have tested the library in **Ubuntu 12.04**, **14.04** and **16.04**, but it should be easy to compile in other platforms. A powerful computer (e.g. i7) will ensure real-time performance and provide more stable and accurate results.
 
 ## C++11 or C++0x Compiler
 We use the new thread and chrono functionalities of C++11.