chore: Expand changelog for version 0.9.0

Describe the contents of the FEATURE_BUNDLE_1 in the changelong

Author: mwiebe

CHANGELOG.md

@@ -2,7 +2,9 @@
 
 
 ### Features
-* Implement FEATURE_BUNDLE_1 RFC 0004 ([`86f79ee`](https://github.com/OpenJobDescription/openjd-model-for-python/commit/86f79ee823ff15f4385b59d3e7b5224241963d50))
+* Implement [FEATURE_BUNDLE_1 RFC 0004](https://github.com/OpenJobDescription/openjd-specifications/blob/mainline/rfcs/0004-enhanced-limits-and-capabilities.md), increasing limits
+  for job parameter counts and name lengths, enabling format strings in integer properties, providing control over embedded file line endings, and adding syntax sugar
+  to simplify templates that run simple scripts with common interpreters ([`86f79ee`](https://github.com/OpenJobDescription/openjd-model-for-python/commit/86f79ee823ff15f4385b59d3e7b5224241963d50))