docs: Consistently use console fence type

CONTRIBUTING.md

@@ -77,7 +77,7 @@ Note: We have not yet determined the End-of-Life schedule for previous major ver
 ### Verifying Changes
 
 A common (sub)set of commands for verifying your change:
-```sh
+```console
 $ make test-full
 $ make clippy-full
 $ make doc

clap_complete/examples/completion-derive.rs

@@ -1,16 +1,16 @@
 //! How to use value hints and generate shell completions.
 //!
 //! Usage with zsh:
-//! ```sh
-//! cargo run --example completion-derive -- --generate=zsh > /usr/local/share/zsh/site-functions/_completion_derive
-//! compinit
-//! ./target/debug/examples/completion_derive --<TAB>
+//! ```console
+//! $ cargo run --example completion-derive -- --generate=zsh > /usr/local/share/zsh/site-functions/_completion_derive
+//! $ compinit
+//! $ ./target/debug/examples/completion_derive --<TAB>
 //! ```
 //! fish:
-//! ```sh
-//! cargo run --example completion-derive -- --generate=fish > completion_derive.fish
-//! . ./completion_derive.fish
-//! ./target/debug/examples/completion_derive --<TAB>
+//! ```console
+//! $ cargo run --example completion-derive -- --generate=fish > completion_derive.fish
+//! $ . ./completion_derive.fish
+//! $ ./target/debug/examples/completion_derive --<TAB>
 //! ```
 use clap::{Args, Command, CommandFactory, Parser, Subcommand, ValueHint};
 use clap_complete::{generate, Generator, Shell};

clap_complete/examples/completion.rs

@@ -1,16 +1,16 @@
 //! Example to test arguments with different ValueHint values.
 //!
 //! Usage with zsh:
-//! ```sh
-//! cargo run --example completion -- --generate=zsh > /usr/local/share/zsh/site-functions/_completion
-//! compinit
-//! ./target/debug/examples/completion --<TAB>
+//! ```console
+//! $ cargo run --example completion -- --generate=zsh > /usr/local/share/zsh/site-functions/_completion$
+//! $ compinit
+//! $ ./target/debug/examples/completion --<TAB>
 //! ```
 //! fish:
-//! ```sh
-//! cargo run --example completion -- --generate=fish > completion.fish
-//! . ./completion.fish
-//! ./target/debug/examples/completion --<TAB>
+//! ```console
+//! $ cargo run --example completion -- --generate=fish > completion.fish
+//! $ . ./completion.fish
+//! $ ./target/debug/examples/completion --<TAB>
 //! ```
 use clap::{value_parser, Arg, Command, ValueHint};
 use clap_complete::{generate, Generator, Shell};

clap_complete/src/generator/mod.rs

@@ -217,7 +217,7 @@ where
 ///
 /// Usage:
 ///
-/// ```shell
+/// ```console
 /// $ myapp generate-bash-completions > /usr/share/bash-completion/completions/myapp.bash
 /// ```
 pub fn generate<G, S>(gen: G, cmd: &mut clap::Command, bin_name: S, buf: &mut dyn Write)