For the "Session" Content Type, add a "Twitter Teaser" field with the following characteristics:
[x] Plain text field
[x] Limited to 240 characters
[x] Does not appear on the Node Display
[x] Has the following Help Text: "Provide a short teaser for your talk proposal that can be used for social media and proposed talk submissions. This field is limited to 240 characters."
For the "Session" Content Type, add a "Twitter Teaser" field with the following characteristics: