docs: Change MetaData to Metadata in database/index.rst

Change MetaData to Metadata in database/index.rst

Author: obozdag

user_guide_src/source/database/index.rst

@@ -14,10 +14,10 @@ patterns. The database functions offer clear, simple syntax.
     Connecting to a Database <connecting>
     Running Queries <queries>
     Generating Query Results <results>
-    Query Helper Functions <helpers>
+    Query Helper Methods <helpers>
     Query Builder Class <query_builder>
     Transactions <transactions>
-    Getting MetaData <metadata>
+    Getting Metadata <metadata>
     Custom Function Calls <call_function>
     Database Events <events>
     Database Utilities <utilities>