Update javascript/ql/src/Security/CWE-798/HardcodedCredentials.qhelp

Co-authored-by: Erik Krogh Kristensen <[email protected]>

Author: adrienpessu

javascript/ql/src/Security/CWE-798/HardcodedCredentials.qhelp

@@ -23,7 +23,7 @@
 
 <example>
   <p>
-    The following code example connects to an HTTP request using an hard-codes authentication header
+    The following code example connects to an HTTP request using an hard-codes authentication header: 
   </p>
 
   <sample src="examples/HardcodedCredentialsHttpRequest.js"/>