Fix Key Generation Docs - resolves #1759 (#1865)
Fix Key Generation Docs - resolves #1759 (#1865)

This fixes the issue found in #1759 which broke due to go changes. The new command allows you to generate keys with docker, and drop them in the current working directory.
matrix-org/dendrite,matrix-org/dendrite,matrix-org/dendrite,matrix-org/dendrite