feat: Working on command-line documentation.

Sources/BumpVersion/Documentation.docc/BumpVersion.md

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+# ``BumpVersion``
+
+@Metadata {
+    @DisplayName("bump-version")
+    @DocumentationExtension(mergeBehavior: override)
+}
+
+A command-line tool for managing swift application versions.
+
+## Overview
+
+This tool aims to provide a way to manage application versions in your build
+pipeline.  It can be used as a stand-alone command-line tool or by using one of
+the provided swift package plugins.
+
+## Installation
+
+The command-line tool can be installed via homebrew.
+
+```bash
+brew tap m-housh/formula
+brew install bump-version
+```
+
+## Package Plugins
+
+Package plugins can be used in a swift package manager project.
+
+```swift
+// swift-tools-version: 5.10
+
+import PackageDescription
+
+let package = Package(
+  platforms:[.macOS(.v13)],
+  dependencies: [
+    ...,
+    .package(url: "https://github.com/m-housh/swift-bump-version.git", from: "0.2.0")
+  ],
+  targets: [
+    .executableTarget(
+      name: "<target name>",
+      dependencies: [...],
+      plugins: [
+        .plugin(name: "BuildWithVersionPlugin", package: "swift-bump-version")
+      ]
+    )
+  ]
+)
+```
+
+> See Also: <doc:PluginsReference>
+
+## Topics
+
+### Articles
+
+- <doc:BasicConfiguration>
+- <doc:ConfigurationReference>
+- <doc:CommandReference>
+- <doc:OptionsReference>
+- <doc:PluginsReference>