Fix most Zola highlighting warnings (#2257)

Author: BD103

content/learn/migration-guides/0.11-to-0.12.md

@@ -753,7 +753,7 @@ Change all `Bezier` references to `CubicBezier`
 
 If you were using Bevy’s `bevy_dylib` feature, use Bevy’s `dynamic_linking` feature instead.
 
-```shell
+```sh
 # 0.11
 cargo run --features bevy/bevy_dylib
 

content/learn/migration-guides/0.16-to-0.17.md

@@ -190,7 +190,7 @@ To match the previous behavior, just `unwrap()` the result.
 
 Wayland has now been added to the default features of the `bevy` crate.
 
-```text
+```
   called `Result::unwrap()` on an `Err` value:
   pkg-config exited with status code 1
   > PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 pkg-config --libs --cflags wayland-client
@@ -733,15 +733,15 @@ The `Combine::combine` method now takes an extra parameter that needs to be pass
 
 Past releases had an incorrect `From<Rot2>` implementation for `Mat2`, constructing a rotation matrix in the following form:
 
-```text
+```
 [  cos, sin ]
 [ -sin, cos ]
 ```
 
 This was actually the _inverse_ of the rotation matrix, resulting in clockwise rotation when transforming vectors.
 The correct version is the following:
 
-```text
+```
 [ cos, -sin ]
 [ sin,  cos ]
 ```
@@ -819,7 +819,7 @@ If you were implementing a fallible system and had set `type Out = Result<T, Bev
 
 If you have a system function that returns `Result` or `!` and are not restricting the return type, you may get type inference failures like this:
 
-```text
+```
 error[E0283]: type annotations needed
     --> lib.rs:100:5
      |
@@ -832,7 +832,7 @@ note: multiple `impl`s satisfying `core::result::Result<(), bevy_error::BevyErro
 
 or
 
-```text
+```
 error[E0283]: type annotations needed
     --> lib.rs:100:11
     |
@@ -1101,7 +1101,7 @@ See the [full changelog here](https://github.com/gfx-rs/wgpu/blob/trunk/CHANGELO
 
 When migrating shaders or other custom rendering code, you may encounter panics like:
 
-```raw
+```
 wgpu error: Validation Error
 
 Caused by:

release-content/0.15/migration-guides/12095_Add_features_to_switch_NativeActivity_and_GameActivity_usa.md

@@ -4,14 +4,14 @@
 
 Before:
 
-```shell
+```sh
 rustup target add aarch64-linux-android armv7-linux-androideabi
 cargo install cargo-apk
 ```
 
 After:
 
-```shell
+```sh
 rustup target add aarch64-linux-android
 cargo install cargo-ndk
 ```
@@ -21,13 +21,13 @@ with the Gradle wrapper.
 
 Before:
 
-```shell
+```sh
 cargo apk build --package bevy_mobile_example
 ```
 
 After:
 
-```shell
+```sh
 cargo ndk -t arm64-v8a -o android_example/app/src/main/jniLibs build --package bevy_mobile_example
 ./android_example/gradlew build
 ```