Add contact links to ecosystem talk post

content/post/postgres/state-of-the-extension-ecosystem.md

@@ -1,9 +1,11 @@
 ---
-title: State of the Extension Ecosystem
+title: "Talk: State of the Extension Ecosystem"
 slug: state-of-the-extension-ecosystem
 date: 2024-03-04T18:50:24Z
-lastMod: 2024-03-04T18:50:24Z
-description: ~
+lastMod: 2024-03-04T20:12:11Z
+description: |
+  A quick reminder that I'll be giving a brief talk on the "State of the
+  Extension Ecosystem" on Wednesday at noon US Eastern / 17:00 UTC.
 tags: [Postgres, PGXN, Extensions, PGConf, Summit]
 type: post
 image:
@@ -28,9 +30,14 @@ some engaging discussions and to surface significant topics ahead of [the
 summit].
 
  [Join us][mini-summit]! Need other information or just want an invitation
- without using Eventbrite, hit me up at `david@` this domain, or on the
- Postgres Slack. See you there!
+ without using Eventbrite, hit me up at `david@` this domain, [on Mastodon], or
+via the [#extensions] channel on the [Postgres Slack].
 
   [mini-summit]: https://www.eventbrite.com/e/851125899477/
     "Postgres Extension Ecosystem Mini-Summit"
   [the summit]: https://www.pgevents.ca/events/pgconfdev2024/schedule/session/191
+  [#extensions]: https://postgresteam.slack.com/archives/C056ZA93H1A
+    "Postgres Slack/#extensions: Extensions and extension-related accessories"
+  [Postgres Slack]: https://pgtreats.info/slack-invite
+    "Join the Postgres Slack"
+  [on Mastodon]: {{% param "mastodon.url" %}} "{{% param "mastodon.user" %}}"