Update index.html

Co-authored-by: Ted Thibodeau Jr <[email protected]>

index.html

@@ -6159,7 +6159,7 @@ <h4>Serialization and Deserialization</h4>
 
  <p>
  There are many other use cases where an implementation, and/or a system
- based on one, has to perform serialization and deserialization of
+ based on one, has to serialize and deserialize 
  JSON-LD documents expressed in <a>internal representation</a> to and
  from JSON character streams.
  </p>