chore: fix capitalisation

Co-authored-by: [ Cassondra ] <castastrophe@users.noreply.github.com>

Author: najikahalsema

.cursor/rules/github-description.mdc

@@ -108,7 +108,7 @@ Common additional labels include:
 
 - `chore`: Routine tasks, maintenance, or non-feature changes
 - `dependencies`: Updates or changes to project dependencies
-- `Documentation`: Documentation updates or improvements
+- `documentation`: Documentation updates or improvements
 - `feature`: New feature implementations or improvements to existing features
 - `i18n`: Internationalization and localization work
 - `mobile`: Mobile platform issues and responsive design