changed return type to only return 1 vec and commented much of the code

Author: megamaths

examples/markdown.svg

@@ -1,4 +1,4 @@
 <svg>
   <rect wh="50 10" md="**Hello** _Markdown_ `world`!"/>
-  <rect xy="^|h" wh="10 50" text="***Hi* vertical** _Mark\ndown_ `\ ***literal*** \`!" class="d-markdown d-text-vertical"/>
+  <rect xy="^|h" wh="10 50" text="***Hi* vertical** _Markdown\nwords_ `\ ***literal*** \`!" class="d-markdown d-text-vertical"/>
 </svg>