move qhelp samples to an examples folder

Author: erik-krogh

csharp/ql/src/Security Features/CWE-022/TaintedPath.qhelp

@@ -34,7 +34,7 @@ enter a filename which contains special characters. For example, the string "../
 reading the file located at "/home/[user]/../../etc/passwd", which is the system's password file. This file would then be
 sent back to the user, giving them access to all the system's passwords.</p>
 
-<sample src="TaintedPath.cs" />
+<sample src="examples/TaintedPath.cs" />
 
 </example>
 <references>

csharp/ql/src/Security Features/CWE-022/ZipSlip.qhelp

@@ -50,7 +50,7 @@ the result is within the destination directory. If provided with a zip file cont
 path like <code>..\sneaky-file</code>, then this file would be written outside the destination
 directory.</p>
 
-<sample src="ZipSlipBad.cs" />
+<sample src="examples/ZipSlipBad.cs" />
 
 <p>To fix this vulnerability, we need to make three changes. Firstly, we need to resolve any
 directory traversal or other special characters in the path by using <code>Path.GetFullPath</code>.
@@ -59,7 +59,7 @@ Secondly, we need to identify the destination output directory, again using
 the resolved output starts with the resolved destination directory, and throw an exception if this
 is not the case.</p>
 
-<sample src="ZipSlipGood.cs" />
+<sample src="examples/ZipSlipGood.cs" />
 
 </example>
 <references>