Fix readme links to asset library

[ghost]

update to latest version not 3.5

fixes #1077

could not find links to the following:

• 3D Inverse Kinematics
• Compositor Effects
• UI Mirroring
• 2.5D Demo Project with C#
• Android IAP with C#
• Dodge the Creeps with C#
• Pong Multiplayer with C#
• WebRTC Minimal
• WebRTC Signaling Demo

so i removed the links

squash the creeps screenshot readme removed remove note about godot 3.2.3 in readme mono

[ghost]

oh right forgot to mention i also fixed all the renderers in the readme

[ghost]

i fixed it but idk how to squash it without github giving me some kind of merging error

[AThousandShips]

You need to push with git push --force