CONNECT_REFERENCE_COUNTED/connect documentation does not give important information

**Godot version:** v3.2.3.stable.official

**URL to the documentation page:** https://docs.godotengine.org/en/stable/classes/class_object.html (under `connect`)

It fails to indicate some things that resulted in great confusion as someone trying to learn godot. When using `CONNECT_REFERENCE_COUNTED`:
- The `binds` parameter in the `connect` function is only used in the first connection
- Even when using `CONNECT_REFERENCE_COUNTED`, it will only fire a target/method pair once

Further, the `connect` documentation claims that:

> It will throw an error if already connected, unless the signal was connected with CONNECT_REFERENCE_COUNTED

However, this is not fully true: if you call `connect` the 2nd time with `CONNECT_REFERENCE_COUNTED`, it won't error, even if you did not use `CONNECT_REFERENCE_COUNTED` for the first connection.