LibMarkdown: Add a Text(String) constructor

Author: https://github.com/alimpfard
Commit: https://github.com/SerenityOS/serenity/commit/7640cb8ec41
Pull-request: https://github.com/SerenityOS/serenity/pull/3562
Reviewed-by: https://github.com/bugaevc

Libraries/LibMarkdown/Text.cpp

@@ -47,6 +47,11 @@ static String unescape(const StringView& text)
     return builder.build();
 }
 
+Text::Text(String&& text)
+{
+    m_spans.append({ move(text), Style {} });
+}
+
 String Text::render_to_html() const
 {
     StringBuilder builder;

Libraries/LibMarkdown/Text.h

@@ -49,6 +49,7 @@ public:
         Style style;
     };
 
+    explicit Text(String&& text);
     Text(Text&& text) = default;
     Text() = default;