fix: update CTA (#2015)

apps/docs/blog/2024-03-12-impact-data-scientists.mdx

@@ -12,8 +12,6 @@ This post is our first step in trying to change that. In it, we discuss:
 1. Why we think the Impact Data Scientist is an important job of the future
 2. The characteristics and job spec of an Impact Data Scientist
 3. Ways to get involved if you are an aspiring Impact Data Scientist
-
-    > Spoiler alert: join [this groupchat](https://t.me/+QE6Pm1DtfktkYjYx) and apply for [data access here](https://www.opensource.observer/data-collective)
 
 One important caveat. This post is focused on building a network of Impact Data Scientists that serve _crypto_ open source software ecosystems. In the long run, we hope to see Impact Data Scientists work in all sorts of domains. We are starting in crypto because there is already a strong culture around supporting open source software and decentralizing grantmaking decisions. We hope this culture of building in public and experimenting crosses over to non-crypto grantmaking ecosystems. When it does, we’d love to help build a network of Impact Data Scientists in those places too!
 
@@ -83,10 +81,4 @@ Here’s the master plan:
 4. Reward contributors retroactively for the impact of their work
 5. Keep iterating until Impact Data Scientist becomes an actual full-time role, either from within or as alumni of the collective
 
-If this speaks to you, then there are two action items:
-
-1. Join [this groupchat](https://t.me/+QE6Pm1DtfktkYjYx). We are also working with other practitioners and theorists as a part of [regenlearnings.xyz](https://regenlearnings.xyz/), helping with the “empirical data” vertex of the triangle. 
-
-2. Apply for [data access here](https://www.opensource.observer/data-collective). Membership to the Kariba Data Collective is free but we want to keep the community close-knit and mission-aligned. Check out the [contributing](https://docs.opensource.observer/docs/contribute/) section of our docs for some specific examples of the infrastructure and tooling we’re looking to offer Impact Data Scientists.
-
-Together, let's make 2024 Year 1 of the Impact Data Science movement!
+If this speaks to you, then please reach out or join our [Discord community](https://www.opensource.observer/discord). We'd love to hear from you.