Add blog (#1203)

* add blog and update docusaurus

docs/blog/2023-02-05-we-need-your-help.mdx

@@ -0,0 +1,25 @@
+---
+title: We Need Your Help!
+description: We Need Your Help!
+slug: we-need-your-help
+authors: yk
+tags: [open-assistant]
+image: https://img.youtube.com/vi/64Izfm24FKA/0.jpg
+---
+
+import ReactPlayer from "react-player";
+
+We Need Your Help!
+
+Help us collect data for OpenAssistant, the largest and most open alternative to
+ChatGPT.
+
+https://open-assistant.io
+
+<ReactPlayer
+  controls
+  width="100%"
+  url="https://www.youtube.com/embed/64Izfm24FKA"
+/>
+
+<!--truncate-->

docs/blog/authors.yml

@@ -0,0 +1,5 @@
+yk:
+  name: Yannic Kilcher
+  title: Project Lead
+  url: https://www.ykilcher.com/
+  image_url: https://www.ykilcher.com/_next/image?url=%2F_next%2Fstatic%2Fmedia%2Fheadshot.ff3a7ee3.webp&w=3840&q=75