Update BUILD_WSL.md

maybe a typo, but when following these instructions the build failes with
make: x86_64-w64-mingw32-g++: No such file or directory
g++-mingw-w64 or g++-mingw-w64-x86-64 has to be installed to work properly

BUILD_WSL.md

@@ -8,7 +8,7 @@ Enable WSL.
 
 Press the win + r key on your keyboard simultaneously and in the "Run" popup window type bash and make sure to install additional dependencies necessary for hashcat compilation
 ```
-sudo apt install gcc-mingw-w64-x86-64 make git
+sudo apt install g++-mingw-w64-x86-64 make git
 git clone https://github.com/hashcat/hashcat
 git clone https://github.com/win-iconv/win-iconv
 cd win-iconv/
@@ -33,4 +33,4 @@ cd "C:\Users\user\hashcat"
 and start hashcat by typing
 ```
 hashcat.exe
-```
+```