anchor.diff:  
   image::puttyGen3.png[]
   
  -Choose a passphrase (like a password, but often people choose a simple sentence with spaces in it).
  +You may choose a passphrase (like a password, but often people choose a simple sentence with spaces in it). If you choose a passphrase, it will always be required when you log in. However, it operates differently than a password (it is integrated with your private key) and should not be confused for a password stored on the server.
   
   Save your public key to a folder on your Desktop called Putty as "pubkey".
   
  
positive.code: 
  It will suggest a name, id_rsa; that is fine.
  
  Choose a passphrase - like a password but usually a sentence with spaces. Now:
  
   $ cat id_rsa.pub
  
  
negative.code: 
  * Slack will be the main communication channel.
  * Navigate to https://seis664.slack.com/[https://seis664.slack.com/].
  ** Click "create an account" and remember your password. You should use your St. Thomas email. Whether you use it or another email, you will need a SEPARATE and DISTINCT password from any other Slack accounts you have. This is just how Slack works; you have to maintain multiple accounts.
  ** Confirm you can read messages. Try posting to the https://seis664.slack.com/messages/general/[#general] thread.
  ** The channels are not cleared from the previous semester. Have a look, you'll get a feel for the class. SEIS660 & SEIS664 alumni may lurk and assist if they feel like it, as long as they are constructive.
  
  