diff --git a/odkx-src/docs-developer-guide.rst b/odkx-src/docs-developer-guide.rst
index cf5d8cc2..4d268c52 100644
--- a/odkx-src/docs-developer-guide.rst
+++ b/odkx-src/docs-developer-guide.rst
@@ -341,6 +341,18 @@ specify the check name in the check list
 in the function :py:func:`exclude_checks`
 in the file :file:`style-test.py`.
 
+Excluding Spelling checks
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+To exclude a word from spelling check,specify the word under the title spelling on the top of the document.
+Example:
+
+  .. code-block:: console
+
+    .. spelling::
+      phpLDAPadmin
+      readonly
+      letsencrypt
 
 
 
@@ -355,4 +367,4 @@ in the file :file:`style-test.py`.
   please update the :file:`requirements.txt` file with 
   :command:`pip freeze > requirements.txt`. 
   Pull requests which change :file:`requirements.txt` 
-  should include a note about why the new package is needed.
\ No newline at end of file
+  should include a note about why the new package is needed.