chore(MADEWITHVRTK.md): add playstation store section
chore(MADEWITHVRTK.md): add playstation store section

A new section containing PSVR games has been added and includes
the game League of War: VR Arena.
gomez-addams/SteamVR_Unity_Toolkit,thestonefox/SteamVR_Unity_Toolkit,gpvigano/SteamVR_Unity_Toolkit,Fulby/VRTK,TMaloteaux/SteamVR_Unity_Toolkit,Innoactive/IA-unity-VR-toolkit-VRTK,thestonefox/VRTK,gpvigano/VRTK,adamjweaver/VRTK,mattboy64/SteamVR_Unity_Toolkit