Merge pull request #51 from appwrite/fix-missing-error-code

Added missing error code

Author: eldadfux

app/views/docs/error-codes.phtml

@@ -67,6 +67,12 @@
             <td data-title="Description: ">Something is broken. Contact our <a href="/support">team</a>, or raise a <a href="https://github.com/appwrite/appwrite/issues/new" target="_blank" rel="noopener">GitHub issue</a>.</td>
         </tr>
 
+        <tr>
+            <td data-title="Code: ">501</td>
+            <td data-title="Text: ">Not Implemented</td>
+            <td data-title="Description: ">The feature is not implemented. Usually returned when the project owner has disabled an auth method or an entire service.</td>
+        </tr>
+
         <tr>
             <td data-title="Code: ">503</td>
             <td data-title="Text: ">Service Unavailable</td>