remove syntax highlighting

Author: pietroalbini

posts/2023-04-20-Rust-1.69.0.md

@@ -27,15 +27,17 @@ Rust 1.29.0 added the `cargo fix` subcommand to automatically fix some simple co
 
 In order to draw more attention to these increased capabilities, Cargo will now suggest running `cargo fix` or `cargo clippy --fix` when it detects warnings that are automatically fixable:
 
-    warning: unused import: `std::hash::Hash`
-     --> src/main.rs:1:5
-      |
-    1 | use std::hash::Hash;
-      |     ^^^^^^^^^^^^^^^
-      |
-      = note: `#[warn(unused_imports)]` on by default
-    
-    warning: `foo` (bin "foo") generated 1 warning (run `cargo fix --bin "foo"` to apply 1 suggestion)
+```text
+warning: unused import: `std::hash::Hash`
+ --> src/main.rs:1:5
+  |
+1 | use std::hash::Hash;
+  |     ^^^^^^^^^^^^^^^
+  |
+  = note: `#[warn(unused_imports)]` on by default
+
+warning: `foo` (bin "foo") generated 1 warning (run `cargo fix --bin "foo"` to apply 1 suggestion)
+```
 
 Note that the full Cargo invocation shown above is only necessary if you want to precisely apply fixes to a single crate. If you want to apply fixes to all the default members of a workspace, then a simple `cargo fix` (with no additional arguments) will suffice.