websocket.org is no longer available, can not test the echo service as shown in the README

[vindarel]

my Google-fu returned:

• https://www.lob.com/blog/websocket-org-is-down-here-is-an-alternative => https://echo.websocket.events/.ws
• what they use: https://github.com/jmalloc/echo-server in Go
• https://socketsbay.com/test-websockets with an embedded test

I don't know if these offer the same service and IDK how to use them with the test code.

(edit): ah, this service makes it explicit that we can connect to our own ws address: https://www.piesocket.com/websocket-tester

Best,