Add link to good first contributions (#100938)

CONTRIBUTING.md

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index b319e4a..d6570d6 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -55,6 +55,8 @@
 Developing for Flutter
 ----------------------
 
+If you would prefer to write code, you may wish to start with our list of [good first contributions](https://github.com/flutter/flutter/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+contribution%22).
+
 To develop for Flutter, you will eventually need to become familiar
 with our processes and conventions. This section lists the documents
 that describe these methodologies. The following list is ordered: you