feat: Initial commit

Sources/CliDoc/Nodes/ShellCommand.swift

@@ -0,0 +1,20 @@
+public struct ShellCommand<Content: Node>: Node {
+
+  public var symbol: String
+  public var content: Content
+
+  public init(
+    symbol: String = "$",
+    @NodeBuilder content: () -> Content
+  ) {
+    self.symbol = symbol
+    self.content = content()
+  }
+
+  public var body: some Node {
+    Group(separator: " ") {
+      symbol
+      content
+    }
+  }
+}