web: convert changelogs from old format

https://gist.github.com/dumbmoron/3fc6c0c747d791928aba939976fd9304

web/changelogs/7.5.md

@@ -0,0 +1,28 @@
+---
+title: "support for twitch clips and rutube!"
+date: "September 16, 2023"
+banner:
+    file: "twitchupdate.webp"
+    alt: "meowth plush staring into the camera, laptop with generic purple service in the background"
+---
+hey! this update (finally) adds support for twitch clips and rutube, among other smaller changes.
+
+service improvements:
+- added support for twitch clips. no vods, they're unnecessary. just clip whatever you want to download!
+- added support for rutube in case you ever wanted to download something russian.
+
+interface improvements:
+- added a note about cobalt not being affiliated with any supported services.
+- added a note about meta (the company) in russian.
+- better russian localization. will keep improving it to make it sound not so robotic over time.
+
+other improvements:
+- all official servers are now using the docker package. and so should you!
+- moved the load balancer to poland. requests should be slightly faster now.
+- minor codebase clean up.
+
+if you're confused about the new domain, read the older changelog! just scroll lower and press "expand".
+
+i hope you find this update useful and have a wonderful day :)
+
+btw, cobalt has a pretty active community server on discord. go to about > support & source code to join!