Update documentation

Author: alexb3103

tools/gui/README.md

@@ -12,6 +12,11 @@ Handles the linking of user input and sof_ctl generically of the control type.
 
 Build sof-ctl for target and copy it to the gui folder base directory within your local repo.
 
+If you have audio on your local machine that you wish to demonstrate using the GUI, add it to the audios subfolder.
+Also, you can specify audio paths on the target with the command line arg --audio-path "path"
+
+If you would like to include eq configs, they are stored in tools/ctl/ipc3. Copy them from there to the eq_configs folder.
+
 Copy entire GUI folder to target hardware.
 
 Next, ensure that the