Relnotes PR and release blog post ping group is now available

A new relnotes-interest-group ping group is now available for contributors to join to get pinged when a new relnotes PR (to https://github.com/rust-lang/rust) or release blog post (to https://github.com/rust-lang/blog.rust-lang.org) are created. Ping group members may wish to be pinged so that they can help with:

• Reviewing wording of the release notes PR or blog post
• Checking if certain release notes entries are unnecessary, redundant, or missing (especially on behalf of their respective team(s))
• Recommending other improvements

This ping group is primarily intended for project members. If you wish to join the ping group, you may follow the usual procedure to send a PR to https://github.com/rust-lang/team and add yourself as a member of teams/relnotes-interest-group.toml.