feat: Adds command documentation about piping to other commands.

Sources/hpa/Internal/Discussion+playbook.swift

@@ -26,14 +26,33 @@ extension Array where Element == Example {
     ))
     return output
   }
+
+  func addingPipeToOtherCommand(command: String) -> Self {
+    var output = self
+    output.append((
+      label: "Piping output to other command.",
+      example: "\(command) --quiet | xargs open"
+    ))
+    return output
+  }
 }
 
 extension ExampleSection where Header == String, Label == String {
-  static func `default`(examples: [Example], usesPassingExtraOptions: Bool = true) -> some TextNode {
+  static func `default`(
+    examples: [Example],
+    usesPassingExtraOptions: Bool = true,
+    usesPipeToOtherCommand: Bool = true
+  ) -> some TextNode {
     var examples = examples
-    if usesPassingExtraOptions, let first = examples.first {
+
+    if let first = examples.first {
+      if usesPassingExtraOptions {
         examples = examples.addingPassingOptions(command: first.example)
       }
+      if usesPipeToOtherCommand {
+        examples = examples.addingPipeToOtherCommand(command: first.example)
+      }
+    }
     return Self(examples: examples) {
       "EXAMPLES:"
     } label: {