socialInteract tag - formalized

docs/1.0.md

@@ -872,3 +872,50 @@ The node value is a free form string meant to explain to the user where this con
 ```xml
 <podcast:contentLink href="https://twitter.com/statuses/somepost">Chat on Twitter!</podcast:contentLink>
 ```
+
+
+
+<br><br><br><br><!-- Tag block -->
+## Social Interact
+`<podcast:socialInteract>`<br><br>
+The `socialInteract` tag allows a podcaster to attach the url of a "root post" of a comment thread to an episode.  This "root post" 
+is treated as the canonical location of where the comments and discussion around this episode will take place.  This can be thought 
+of as the "official" social media comment space for this episode.  If a protocol such as "activitypub" is used, or some other
+protocol that allows programmatic API access, these comments can be directly pulled into the app, and replies can be posted back to 
+the thread from the app itself.
+
+If multiple `socialInteract` tags are given for an `<item>`, the `priority` attribute is strongly recommended to give the app an 
+indication as to which comments to display first.
+
+This tag can also be used as a signal to platforms and apps that the podcaster does not want public comments shown alongside this 
+episode.  For this purpose a `protocol` value of "disabled" can be specified, with no other attributes or node value present.
+
+### Parent
+&nbsp; `<item>`
+
+### Count
+&nbsp; Multiple
+
+### Attributes
+- **uri** (required) The uri/url of root post comment.
+- **protocol** (required) The [protocol](/socialprotocols.txt) in use for interacting with the comment root post.
+- **accountId** (recommended) The account id (on the commenting platform) of the account that created this root post.
+- **accountUrl** (optional) The public url (on the commenting platform) of the account that created this root post.
+- **priority** (optional) When multiple socialInteract tags are present, this integer gives order or priority in ascending order of importance.  A lower number means higher priority.
+
+
+Example (simple):
+```xml
+<podcast:socialInteract uri="https://podcastindex.social/web/@dave/108013847520053258" protocol="activitypub" accountId="@dave" />
+```
+
+Example (complex):
+```xml
+<podcast:socialInteract priority="1" uri="https://podcastindex.social/web/@dave/108013847520053258" protocol="activitypub" accountId="@dave" accountUrl="https://podcastindex.social/web/@dave" />
+<podcast:socialInteract priority="2" uri="https://twitter.com/PodcastindexOrg/status/1507120226361647115" protocol="twitter" accountId="@podcastindexorg" accountUrl="https://twitter.com/PodcastindexOrg" />
+```
+
+Example (disabled):
+```xml
+<podcast:socialInteract protocol="disabled" />
+```