Process: Enhanced docs of `Wait For Process`
Process: Enhanced docs of `Wait For Process`

Update issue 1481
Status: Done
Implementation and tests look very good. I enhanced the docs and consider this
done.

fiuba08/robotframework,waldenner/robotframework,ldtri0209/robotframework,fiuba08/robotframework,waldenner/robotframework,fiuba08/robotframework,ldtri0209/robotframework,waldenner/robotframework,waldenner/robotframework,ldtri0209/robotframework,fiuba08/robotframework,waldenner/robotframework,ldtri0209/robotframework,ldtri0209/robotframework,fiuba08/robotframework