Enable WebSocket port

Dockerfile

@@ -19,12 +19,12 @@ VOLUME ["/data"]
 ENV HOME /data
 ENV ALLOW_ROOT 1
 ENV DB_DIRECTORY /data
-ENV SERVICES=tcp://:50001,ssl://:50002
+ENV SERVICES=tcp://:50001,ssl://:50002,wss://:50004
 ENV SSL_CERTFILE ${DB_DIRECTORY}/electrumx.crt
 ENV SSL_KEYFILE ${DB_DIRECTORY}/electrumx.key
 ENV HOST ""
 WORKDIR /data
 
-EXPOSE 50001 50002
+EXPOSE 50001 50002 50004
 
 CMD ["init"]

README.md

@@ -29,6 +29,10 @@ You can view all ElectrumX environment variables here: https://github.com/kyuupi
 
 By default only the SSL port is exposed. You can expose the unencrypted TCP port with `-p 50001:50001`, although this is strongly discouraged.
 
+### WebSocket Port
+
+You can expose the WebSocket port with `-p 50004:50004`.
+
 ### Version
 
 You can also run a specific version of ElectrumX if you want.