Changes

* [irc://irc.mozilla.org/rust-internals #rust-internals] - Rust compiler and library development

* [irc://irc.mozilla.org/rust-osdev #rust-osdev] - Operating system development with Rust

* [irc://irc.mozilla.org/womoz #womoz] - Women & Mozilla Discussion channel

* [irc://irc.mozilla.org/tb-support-crew #tb-support-crew] - for Thunderbird support meta discussion NOT for Thunderbird support;