Added comments

include/ast/ast.hpp

@@ -29,7 +29,7 @@ namespace fsh {
 
     class AstFactory {
       public:
-        // Generates an abstract syntax tree
+        // Generise abstraktno sintaksno drvo po ebnf formuli gore
         static std::shared_ptr<ExecutableNode> generate_ast(std::list<Token>& list) {
             auto it = list.begin();
             return CommandLineNode::build(it);
@@ -41,4 +41,4 @@ namespace fsh {
         AstFactory(const AstFactory&) = default;
     };
 
-} // namespace fsh
+}