documentation: Update Note Protocol

Using /// rather than simply //.

Signed-off-by: Will Hawkins <hawkinsw@obs.cr>

Sources/P4Compiler/Declarations.swift

@@ -30,7 +30,7 @@ extension Declaration: CompilableDeclaration {
     let declaration_compilers: [String: CompilableDeclaration.Type] = [
       "function_declaration": FunctionDeclaration.self,
       "control_declaration": Control.self,
-      "type_declaration": P4Struct.self,  // ASSUME: Type declarations are struct declarations.
+      "type_declaration": P4Struct.self,  /// ASSUME: Type declarations are struct declarations.
       "extern_declaration": ExternDeclaration.self,
     ]
 
@@ -273,7 +273,7 @@ extension P4Lang.Parser: CompilableDeclaration {
     let type_node = current_node
     var parser_name: Common.Identifier? = .none
 
-    // TODO: Handle parser parameter lists.
+    /// TODO: Handle parser parameter lists.
     var parameter_list = ParameterList()
 
     do {

Sources/P4Compiler/Expression.swift

@@ -352,7 +352,7 @@ extension BinaryOperatorExpression: CompilableExpression {
         ErrorOnNode(
           node: node, withError: "Malformed binary operator expression")))
 
-    // TODO: This macro cannot handle new lines in the arrays
+    /// TODO: This macro cannot handle new lines in the arrays
     // swift-format-ignore
     #RequireNodesType<Node, EvaluatableExpression?>(
       nodes: binary_operator_expression_node,

Sources/P4Compiler/Parser.swift

@@ -275,7 +275,7 @@ public struct Parser {
     var error: Error? = .none
 
     var current_context = context
-    // TODO: Assert that there is only one.
+    /// TODO: Assert that there is only one.
     node.enumerateNamedChildren { parser_state in
       if parser_state.nodeType != "parserState" {
         return