doc: Demostrate that the dockcross script should be exectuted from the source dir
doc: Demostrate that the dockcross script should be exectuted from the source
dir

dockcross/dockcross,thewtex/cross-compilers,thewtex/cross-compilers,dockcross/dockcross,thewtex/cross-compilers,thewtex/cross-compilers,dockcross/dockcross,dockcross/dockcross