Documentation for worker routing has incorrect path

[kosmos]

Description

It seems to me that the documentation contains an incorrect routing for the endpoint:

^/_matrix/client/(r0|v3|unstable)/keys/upload/

If you look at the matrix specification, this routing should be defined as follows:

^/_matrix/client/(r0|v3|unstable)/keys/upload$

Steps to reproduce

Compare the specification and documentation:

• https://spec.matrix.org/v1.12/client-server-api/#post_matrixclientv3keysupload
• https://element-hq.github.io/synapse/latest/workers.html?highlight=worker#synapseappgeneric_worker

[erikjohnston]

This looks like a typo in the documentation, and the trailing / should be removed (and replaced with $)