[Feat] add command output example

Author: mistricky

core/examples/command_output.rs

@@ -0,0 +1,26 @@
+use codesnap::config::{CodeSnap, CommandLineContentBuilder, Content};
+use std::process::Command;
+
+pub fn main() -> anyhow::Result<()> {
+    let command = "echo \"Hello, World!\"";
+    let output = Command::new("sh")
+        .arg("-c")
+        .arg(command)
+        .output()
+        .expect("failed to execute process");
+
+    let command_line_content = CommandLineContentBuilder::default()
+        .full_command(command)
+        .content(String::from_utf8_lossy(&output.stdout).into_owned())
+        .build()
+        .unwrap();
+
+    let command_content = Content::CommandOutput(vec![command_line_content]);
+    let snapshot = CodeSnap::from_default_theme()?
+        .content(command_content)
+        .build()?
+        .create_snapshot()?;
+
+    // Copy the snapshot data to the clipboard
+    snapshot.raw_data()?.copy()
+}