fix typos in documentation strings

Co-authored-by: intrigus-lgtm <60750685+intrigus-lgtm@users.noreply.github.com>

Author: erik-krogh

javascript/2020-11-09-jwt.md

@@ -1,5 +1,5 @@
 lgtm,codescanning
-* Libraries implementing JWT have been modelled. 
+* Libraries implementing JWT have been modeled. 
   Affected packages are
     [jsonwebtoken](https://www.npmjs.com/package/jsonwebtoken) and
     [jwt-decode](https://www.npmjs.com/package/jwt-decode)

javascript/ql/src/semmle/javascript/frameworks/JWT.qll

@@ -5,7 +5,7 @@
 import javascript
 
 /**
- * Provides classes and predicates modelling the `jwt-decode` libary.
+ * Provides classes and predicates modeling the `jwt-decode` libary.
  */
 private module JwtDecode {
   /**
@@ -22,7 +22,7 @@ private module JwtDecode {
 }
 
 /**
- * Provides classes and predicates modelling the `jsonwebtoken` libary.
+ * Provides classes and predicates modeling the `jsonwebtoken` libary.
  */
 private module JsonWebToken {
   /**