Update README.md

Author: Snosixtyboo

README.md

@@ -107,7 +107,7 @@ If you can afford the disk space, we recommend using our environment files for s
 
 #### Known Issues
 
-Some users experience problems building the submodules on windows (```cl.exe: File not found``` or similar). Please consider the workaround for this problem from the FAQ.
+Some users experience problems building the submodules on Windows (```cl.exe: File not found``` or similar). Please consider the workaround for this problem from the FAQ.
 
 ### Running