INT-3300: Update doc links to point to version 7 (#513)

* INT-3300: Update doc links to point to version 7

Author: danoaky-tiny

README.md

@@ -4,9 +4,9 @@
 
 This package is a thin wrapper around [TinyMCE](https://github.com/tinymce/tinymce) to make it easier to use in a React application.
 
-* If you need detailed documentation on TinyMCE, see: [TinyMCE Documentation](https://www.tiny.cloud/docs/tinymce/6/).
-* For the TinyMCE React Quick Start, see: [TinyMCE Documentation - React Integration](https://www.tiny.cloud/docs/tinymce/6/react-cloud/).
-* For the TinyMCE React Technical Reference, see: [TinyMCE Documentation - TinyMCE React Technical Reference](https://www.tiny.cloud/docs/tinymce/6/react-ref/).
+* If you need detailed documentation on TinyMCE, see: [TinyMCE Documentation](https://www.tiny.cloud/docs/tinymce/7/).
+* For the TinyMCE React Quick Start, see: [TinyMCE Documentation - React Integration](https://www.tiny.cloud/docs/tinymce/7/react-cloud/).
+* For the TinyMCE React Technical Reference, see: [TinyMCE Documentation - TinyMCE React Technical Reference](https://www.tiny.cloud/docs/tinymce/7/react-ref/).
 * For our quick demos, check out the TinyMCE React [Storybook](https://tinymce.github.io/tinymce-react/).