Update Eggdrop docs (#2160)
Update Eggdrop docs (#2160)

* Add package install directions

* change irc servers

* fix formatting

* Update server env docs

...and remove old dns module comment

* Finish sentence

* typo fix
infosiftr/docker-library-docs,nats-io/docker-docs,jetty-project/docker-docs,nats-io/docker-docs,jetty-project/docker-docs,Bonitasoft-Community/docker_docs,docker-library/docs,Lightstreamer/docs,infosiftr/docker-library-docs,docker-library/docs,Lightstreamer/docs,Bonitasoft-Community/docker_docs