ContentMathML-extension-proposal.md

@@ -14,7 +14,7 @@ Our [current ContentMathML extension](https://github.com/mathjax/MathJax/blob/ma
 
 ### Notes on Strict Content MathML
 
-We do not implement the Content MathML => Strict Content MathML algorithm mentioned as optional in the MathML spec. Instead, we take a down-to-earth approach to Strict Content MathML.
+We do not implement the Content MathML => Strict Content MathML transformation [mentioned (optionally) in the MathML spec](http://www.w3.org/Math/draft-spec/mathml.html#chapter4_contm.p2s). Instead, we take a down-to-earth approach to Strict Content MathML.
 
 Essentially, by handling