fix(DOCUMENTATION): label climbing example correctly
fix(DOCUMENTATION): label climbing example correctly

The Player Climb example scene was not correctly named so this
has been updated to ensure it is correct.
thacio/SteamVR_Unity_Toolkit,Fulby/VRTK,Blueteak/SteamVR_Unity_Toolkit,mimminito/SteamVR_Unity_Toolkit,adamjweaver/VRTK,TMaloteaux/SteamVR_Unity_Toolkit,mattboy64/SteamVR_Unity_Toolkit,thestonefox/SteamVR_Unity_Toolkit,pargee/SteamVR_Unity_Toolkit,nmccarty/htvr,gpvigano/VRTK,Innoactive/IA-unity-VR-toolkit-VRTK,gpvigano/SteamVR_Unity_Toolkit,virror/VRTK,red-horizon/VRTK,thestonefox/VRTK,bengolds/SteamVR_Unity_Toolkit,mbbmbbmm/SteamVR_Unity_Toolkit,gomez-addams/SteamVR_Unity_Toolkit,phr00t/SteamVR_Unity_Toolkit,jcrombez/SteamVR_Unity_Toolkit