web: convert changelogs from old format

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

web/changelogs/7.7.md

@@ -0,0 +1,30 @@
+---
+title: "bugfixes and better downloads!"
+date: "December 2, 2023"
+banner:
+    file: "meowthpolishegg.webp"
+    alt: "meowth polishing a togepi egg"
+---
+this update fixes various issues with supported services. no new features yet, but twitter fix is surely something good to have in the meantime!
+
+service improvements:
+- broken twitter videos are now automatically fixed by cobalt.
+- all vimeo videos and audios should now be possible to download.
+- vimeo: fixed short resolution displayed in "basic" and "pretty" filename styles.
+
+interface improvements:
+- streamables are now easier to save on ios.
+
+internal improvements:
+- port env variable is now not strictly necessary for cobalt to run.
+- minor clean up.
+
+changes since 7.6:
+- fix for an issue related to youtube dubs.
+- fixed a memory leak related to live renders.
+- handling all errors related to twitter downloads.
+- fixed support for reddit links in various languages.
+- added rich filenames support for twitch clips.
+- updated support and donation lists.
+
+stay tuned for future updates and have a great day :D