JS: fix typos in qldoc comment

Author: nickrolfe

javascript/ql/lib/semmle/javascript/frameworks/NoSQL.qll

@@ -4,7 +4,7 @@
 
 import javascript
 
-/** Provices classes for modelling NoSQL query sinks. */
+/** Provides classes for modeling NoSQL query sinks. */
 module NoSql {
   /** An expression that is interpreted as a NoSQL query. */
   abstract class Query extends Expr {