Change common headlines

Author: rvsia

packages/react-renderer-demo/src/pages/introduction.md

@@ -3,7 +3,7 @@ import CodeExample from '@docs/code-example';
 
 <DocPage>
 
-# Introduction
+# Data Driven Forms Introduction
 
 Data Driven Forms converts JSON form definitions into fully functional React forms.
 It uses [React Final Form](https://github.com/final-form/react-final-form) for the form state management.

packages/react-renderer-demo/src/pages/schema/data-types.md

@@ -3,7 +3,7 @@ import DocPage from '@docs/doc-page';
 
 <DocPage>
 
-# Introduction
+# Data Types
 
  You can specify a type of a component by providing `dataType`, which will automatically validates the component value.
 Because almost everything in HTML inputs is outputed as a string, adding the `dataType` props will also cast the value to given type.

packages/react-renderer-demo/src/pages/schema/introduction.md

@@ -2,7 +2,7 @@ import DocPage from '@docs/doc-page';
 
 <DocPage>
 
-# Introduction
+# Schema Introduction
 
 ## Schema definition