message: Clarify what not to retweet
diff: @@ -6,10 +6,16 @@ The account is handled by a small team of volunteers.
  The account will mostly tweet links to the Rust blog and Rust Insiders blog.
  Additionally it will retweet:
  -* links to blog posts about Rust, retweeting the original author if possible,
  -* questions about Rust, so all followers can help,
  -* Meetup or conference announcements,
  -* anything else relevant.
  +* links to blog posts about Rust, retweeting the original author if possible
  +* questions about Rust, so all followers can help
  +* Meetup or conference announcements
  +* anything else relevant
  +
  +We will not retweet:
  +
  +* content that bashes other programming languages/projects or is otherwise unconstructive in its discussion of language/tech choice
  +* Personal announcements ("Today I start my job at $COMPANY writing Rust")
  +* Learning Rust updates ("Today I started to learn Rust")
  The Direct Messages are open to everyone.
  If someone wants something retweeted, they should send the tweet via DM.
  