Hello Dante, you bring up a relevant problem. I suggest you put it in the form of a post within the group you have created. Groups per se are not commentable, so nobody can easily engage with you! The text in the group is supposed to be a description of just a couple of lines, so that people can decide quickly whether or not they want to subscribe to the group.
From the group (/t/edgeryders-governance-better-identifiying-networked-commons-and-enclosed-organizations/524-enclosed-organizations) scroll down to find the blue “Create post” button: after that it is straightforward, you can simply copy paste in the post the text you have written. The post will be commentable.