Semantic-Embedding-Examples.md

 Some simple examples of embedded semantic tree. Note that for readability the attributes have been abbreviated
 
 Original MathML:
- <math>
+```html
+<math>
   <mi>5</mi>
   <mo>=</mo>
   <mi>3</mi>
   <mo>+</mo>
   <mi>2</mi>
- </math>
+</math>
+```
 
 Enriched MathML:
+```html
 <math>
   <mrow semantic-type="relseq" semantic-role="equality" id="6" semantic-content="1" semantic-children="0,5">
     <mi semantic-type="number" semantic-role="integer" id="0" semantic-parent="0">5</mi>
@@ -21,3 +24,4 @@ Enriched MathML:
     </mrow>
   </mrow>
 </math>
+```
\ No newline at end of file