Tense change for when to use mat2

wiki/src/doc/sensitive_documents/remove_metadata.mdwn

@@ -61,7 +61,7 @@ formats. For example, <i>Microsoft Office</i> documents can contain embedded ima
 audio, and other files containing their own metadata that <i>mat2</i> cannot
 recognize.</p>
 
-<p>You should run <i>mat2</i> on any files that you embed into another
+<p>You should run <i>mat2</i> on any files before you embed them into another
 document.</p>
 
 <p>Also, you should save files in simpler formats whenever possible.