content/scrub Slack workspace invites with GitHub links (#140)

src/pages/blog/release/v0-28-0.md

@@ -143,4 +143,4 @@ All web standards, all the time. You know we love to see it. 🤓
 
 In addition to the above mentioned features, this release also lays the ground work for our foray into [Serverless and Edge runtime support](https://github.com/ProjectEvergreen/greenwood/issues/1008). For out next release, Greenwood team has its sights set on being able to fully embrace running beyond the server with hosting providers like Netlify and Vercel and their serverless and edge offerings, allowing us to push web standards even further down the stack! We [see this trend becoming more ubiquitous](https://wintercg.org/) as more and more hosting providers coalesce around these standards too, so now is a great time to get started!
 
-Stay tuned, [join our Slack](https://join.slack.com/t/thegreenhouseio/shared_invite/enQtMzcyMzE2Mjk1MjgwLTU5YmM1MDJiMTg0ODk4MjA4NzUwNWFmZmMxNDY5MTcwM2I0MjYxN2VhOTEwNDU2YWQwOWQzZmY1YzY4MWRlOGI) to be part of the conversation, and we look forward to seeing you in the next release notes! ✌️
+So stay tuned, join our [GitHub](https://github.com/ProjectEvergreen) or [Discord](https://discord.gg/Rkb7VTvk) communities to be part of the conversation, and we look forward to seeing you for the next release. ✌️

src/pages/blog/release/v0-29-0.md

@@ -114,4 +114,4 @@ We're really excited to see the progress **Greenwood** has been able to make thi
 
 We're also planning a significant [redesign of the Greenwood website](https://github.com/ProjectEvergreen/greenwood/issues/978) to help better showcase all of Greenwood's capabilities and to streamline and simplify the documentation.
 
-So stay tuned, join our [Slack](https://join.slack.com/t/thegreenhouseio/shared_invite/enQtMzcyMzE2Mjk1MjgwLTU5YmM1MDJiMTg0ODk4MjA4NzUwNWFmZmMxNDY5MTcwM2I0MjYxN2VhOTEwNDU2YWQwOWQzZmY1YzY4MWRlOGI) or [Discord](https://discord.gg/pFbynPar) communities to be part of the conversation, and we look forward to seeing you for the next release. ✌️
+So stay tuned, join our [GitHub](https://github.com/ProjectEvergreen) or [Discord](https://discord.gg/Rkb7VTvk) communities to be part of the conversation, and we look forward to seeing you for the next release. ✌️

src/pages/blog/release/v0-30-0.md

@@ -187,4 +187,4 @@ We took on a pretty significant overhaul of the feature set related to leveragin
 
 ---
 
-As always, we're excited to see where the community can take Greenwood and are always available to chat on [GitHub](https://github.com/ProjectEvergreen/greenwood) or [Discord](https://discord.gg/pFbynPar). See you for the next release! ✌️
+As always, we're excited to see where the community can take Greenwood and are always available to chat on [GitHub](https://github.com/ProjectEvergreen/greenwood) or [Discord](https://discord.gg/Rkb7VTvk). See you for the next release! ✌️