Improve the introduction page and correction

Author: Dedelweiss

_overviews/contribute/guide.md

@@ -68,7 +68,7 @@ the Scala project source tree. The hacker's guides ([Scala 2][hackers], or [Scal
 [community-tickets]: {% link _overviews/contribute/index.md %}#community-tickets
 [bug-reporting-guide]: {% link _overviews/contribute/bug-reporting-guide.md %}
 [bug-report-check-dupes]: {% link _overviews/contribute/bug-reporting-guide.md %}#please-check-before-reporting-a-bug
-[scala3-hackers]: {% link _overviews/scala3-contribution/procedures-intro.md %}
+[scala3-hackers]: {% link _overviews/scala3-contribution/contribution-intro.md %}
 [contrib-forum]: https://contributors.scala-lang.org/
 [why-its-a-good-idea]: {% link _overviews/contribute/scala-internals.md %}#why-its-a-good-idea
 [hackers-connect]: {% link _overviews/contribute/hacker-guide.md %}#1-connect

_overviews/scala3-contribution/contribution-intro.md

@@ -6,10 +6,18 @@ num: 1
 previous-page:
 next-page:
 ---
-Dotty is an open-source project, and as such, we welcome contributions from the community to help us make it even better.
+Thank you for wanting to contribute to Scala 3!
 
-We would like to take a moment to thank all the users who have already contributed to Dotty. Your help and support are invaluable to us, and we are grateful for every contribution, no matter how big or small.
+Dotty is an open-source project, and as such, we welcome contributions from the community to help us make it even better.
 
 If you are interested in contributing to Dotty, please visit our website at [Dotty Contributing](https://dotty.epfl.ch/docs/contributing/index.html) page, where you will find all the information you need to get started. We encourage everyone, regardless of their level of expertise, to contribute to Dotty, as there are many ways to help, from fixing bugs and implementing new features to improving documentation and testing.
 
-Thank you for your support, and we look forward to working with you.
+If you have any questions, please feel free to ask them on the [Dotty Contributors Forum](https://contributors.scala-lang.org/c/scala-3/scala-3-contributors/9).
+
+Summary of the contribution guide on Dotty:
+
+- [Getting-Started](https://dotty.epfl.ch/docs/contributing/getting-started.html)
+- [Steps to Contribute](https://dotty.epfl.ch/docs/contributing/issues/index.html)
+- [IDEs and Tools](https://dotty.epfl.ch/docs/contributing/tools/index.html)
+- [Procedures](https://dotty.epfl.ch/docs/contributing/procedures/index.html)
+- [High Level Architecture](https://dotty.epfl.ch/docs/contributing/architecture/index.html)