fixed typo

Author: D33r-Gee

doc/build-android.md

@@ -199,7 +199,7 @@ if you get an error like this:
 global/qlogging:1296:13 n = backtrace(...
 ```
 
-find the file qlogging.cpp (depends/.../work/.../global/) then you need to edit the function with the follwing:
+find the file qlogging.cpp (depends/.../work/.../global/) then you need to edit the function with the following:
 
 ```
 static QStringList backtraceFramesForLogMessage(int frameCount)