feat: Working on command-line documentation.

Sources/BumpVersion/Commands/BumpCommand.swift

@@ -0,0 +1,40 @@
+import ArgumentParser
+import CliClient
+import CliDoc
+import Dependencies
+
+struct BumpCommand: CommandRepresentable {
+
+  static let commandName = "bump"
+
+  static let configuration = CommandConfiguration(
+    commandName: Self.commandName,
+    abstract: Abstract.default("Bump version of a command-line tool."),
+    usage: Usage.default(commandName: nil),
+    discussion: Discussion.default(examples: [
+      makeExample(
+        label: "Basic usage, bump the minor version.",
+        example: "--minor"
+      ),
+      makeExample(
+        label: "Dry run, just show what the bumped version would be.",
+        example: "--minor --dry-run"
+      )
+    ])
+  )
+
+  @OptionGroup var globals: GlobalOptions
+
+  @Flag(
+    help: """
+    The semvar bump option, this is ignored if the configuration is set to use a branch/commit sha strategy.
+    """
+  )
+  var bumpOption: CliClient.BumpOption = .patch
+
+  func run() async throws {
+    try await globals.run(\.bump, command: Self.commandName, args: bumpOption)
+  }
+}
+
+extension CliClient.BumpOption: EnumerableFlag {}