First line should be like this:

Tennix 0.x.y (DATE)

Create commit summary information:
  git log previousreleasetagname..thisreleasetagname | git shortlog

Edit the commit summary information by formatting lines so that
they start with a tabulator, followed by an asterisk, followed by 
a space character and then the commit message, like this:

        * asdf

Add a "#######..." line as delimiter

