Update README.md

Author: benkeen

README.md

@@ -2,11 +2,15 @@
 
 The Swift Mailer module, when installed and configured, overrides the default PHP mail() usage and sends all Form Tools emails via the SMTP settings you supply.
 
+
 ### Documentation
 
-[https://docs.formtools.org/modules/swift_mailer/](https://docs.formtools.org/modules/swift_mailer/)
+- [https://docs.formtools.org/modules/swift_mailer/](https://docs.formtools.org/modules/swift_mailer/)
+
 
-### Form Tools Extensions
+### Other Links
 
-For further information about Form Tools modules, check out:
-[https://modules.formtools.org](https://modules.formtools.org)
+- [Available Form Tools modules](https://modules.formtools.org/)
+- [About Form Tools modules](https://docs.formtools.org/userdoc/modules/) 
+- [Installation instructions](https://docs.formtools.org/userdoc/modules/installing/)
+- [Upgrading](https://docs.formtools.org/userdoc/modules/upgrading/)