update readme

README.md

@@ -34,6 +34,7 @@ The project comes with a version of zlib and libpng (with the apng patch). They
 	4. Continue the setup and thats it! you can now use the module for all of your installed Kits for that Qt
 3. Download the compiled modules from the release page. **Note:** You will have to add the correct ones yourself and may need to adjust some paths to fit your installation! In addition to that, you will have to download the modules this one depends on as well. See Section "Requirements" below.
 4. Build it yourself! **Note:** This requires all build an runtime dependencies to be available (See Section "Requirements" below). If you don't have/need cmake, you can ignore the related warnings. To automatically build and install to your Qt installation, run:
+	- Download the sources. Either use `git clone` or download from the releases. If you choose the second option, you have to manually create a folder named `.git` in the projects root directory, otherwise the build will fail.
 	- `qmake`
 	- `make` (If you want the tests/examples/etc. run `make all`)
 	- `make install`