Cleaning up invalid references

Just a bunch of fixes to invalid references ;)

cc @georgkrause

content/blog-post-week-2019-24.md

@@ -47,7 +47,7 @@ We voted on many subjects:
 
 @robin
 
-@eliotberriot
+@agate
 
 **Moderation Commitee**
 
@@ -59,7 +59,7 @@ We voted on many subjects:
 
 As part of our ongoing effort to transition to a "Benevolent Dictator" to a community-driven governance, we're in the process of building a group of reviewers that are willing to review contributions made to Funkwhale.
 
-Because lots of those contributions are done by @eliotberriot, having systematic reviews will reduce the bus factor and ensure the contributions are understood and approved by other community members.
+Because lots of those contributions are done by @agate, having systematic reviews will reduce the bus factor and ensure the contributions are understood and approved by other community members.
 
 We're maintaining an [open pad](https://pad.funkwhale.audio/code-reviewers) with reviewers name and area of interests, so feel free to add your name to this list :)
 
@@ -79,7 +79,7 @@ The stingray is Serenity.
 
 ## Coordinate translations
 
-Eliot started a thread [Coordinate translations](https://governance.funkwhale.audio/d/X2z5kEFt/coordinate-translations) to keep track of contributors and reviewers for each language in which https://translate.funkwhale.audio is translated.
+Agate started a thread [Coordinate translations](https://governance.funkwhale.audio/d/X2z5kEFt/coordinate-translations) to keep track of contributors and reviewers for each language in which https://translate.funkwhale.audio is translated.
 
 ## Discussions on a future desktop client
 
@@ -89,4 +89,4 @@ A poll was opened this week to identify core priorities and features, and will r
 
 We would like to thank all the Funkwhale community, so many wonderful folks involved in this great adventure !
 
-This article was written by Eliot and Robin.
+This article was written by Agate and Robin.