* Make all links indirect for better maintenance
* Add Domain section with `coturn.example.com` and use it in subsequent
examples
* Add standard ports for TURN and TURNS
* Remove TURNS-over-UDP (unknown whether it is supported)
* Add section on opening ports with ufw commands
* IMPORTANT: Move password auth/guest access instructions into the
Appendix as they are very insecure
* Small improvements in Testing section
* Rewrite Troubleshooting section to be more concise and cut down on
errors
* Add note to Eturnal in Appendix section
* Use de facto unstasble path instead of the standard one
* Document both the unstable and well-known paths as being exposed by
Continuwuity when set
* Make curling said path one of the Testing steps
* Removing confusing console `~$` prefix symbols, move commands and
response into separate code blocks
* Number the MSCs
* specify that the added ports belong to livekit's container in
TURN section, and remind firewall rules for them
* prioritize the network_mode: host workaround
* add docker livelogs instructions
* use bash for code blocks instead of console
* some other small fixes
* add link to matrix-rtc room
* include livekit key-secret pair examples for clarity with livekit.yaml
* troubleshooting: add common EC errors and docker networking subsections
* fix a merge conflict issue
* separate links into categories in order of importance: guides, specs, source codes
* add short description to included community guides
* add Element Call, lk-jwt-service, and the livekit MSCs too
* separate links into categories in order of importance: guides, specs, source codes
* add short description to included community guides
* add Element Call, lk-jwt-service, and the livekit MSCs too
Add dedicated \`GET /_matrix/client/v1/rtc/transports\` and \`GET /_matrix/client/unstable/org.matrix.msc4143/rtc/transports\` endpoints for MatrixRTC focus discovery (MSC4143), replacing the deprecated well-known approach.
Move RTC foci configuration from \`[global.well_known]\` into a new \`[global.matrix_rtc]\` config section with a \`foci\` field. Remove \`rtc_foci\` from the \`.well-known/matrix/client\` response. Update LiveKit setup documentation accordingly.
Closes#1431