Topics do not have underscores

ahpook · web-flow · commit e095255590c2 · 2023-10-16T18:42:57.000-07:00
They can only have hyphens and alphanumeric characters.
diff --git a/topics/egui/index.md b/topics/egui/index.md
@@ -1,6 +1,6 @@
 ---
 topic: egui
-aliases: egui-rs, egui-rust, egui_rs, egui_rust
+aliases: egui-rs, egui-rust
 related: iced, iced-rs
 created_by: Emil Ernerfeldt
 display_name: egui
