Consistently use bullets in the compatibility section

Author: joshtriplett

posts/2022-09-22-Rust-1.64.0.md

@@ -280,10 +280,11 @@ These APIs are now usable in const contexts:
    versions, which have been out for more than a year. The vast majority of
    impacted users should be able to mitigate with a `cargo update`.
 
-As part of the [RLS
-deprecation](https://blog.rust-lang.org/2022/07/01/RLS-deprecation.html), this
-is also the last release containing a copy of RLS. Starting from Rust 1.65.0,
-RLS will be replaced by a small LSP server showing the deprecation warning.
+* As part of the [RLS
+  deprecation](https://blog.rust-lang.org/2022/07/01/RLS-deprecation.html),
+  this is also the last release containing a copy of RLS. Starting from Rust
+  1.65.0, RLS will be replaced by a small LSP server showing the deprecation
+  warning.
 
 ### Other changes