docs: change section title

kenjis · kenjis · commit 2a4bfc7a0ec4 · 2022-09-27T19:56:45.000+09:00
The methods are for escaping values only.
They do not escape queries.
diff --git a/user_guide_src/source/database/queries.rst b/user_guide_src/source/database/queries.rst
@@ -91,9 +91,9 @@ prefixing set ``true`` (boolean) via the second parameter:
 
 .. literalinclude:: queries/008.php
 
-****************
-Escaping Queries
-****************
+***************
+Escaping Values
+***************
 
 It's a very good security practice to escape your data before submitting
 it into your database. CodeIgniter has three methods that help you do
