Assign HIP number and add to README

Signed-off-by: Scott Rigby <scott@r6by.com>

Author: scottrigby

hips/README.md

@@ -37,3 +37,4 @@ restricted markdown format and can be found in the
 - [hip-0025: Better Support for Resource Creation Sequencing](hip-0025.md)
 - [hip-0026: H4HIP: Wasm plugin system](hip-0026.md)
 - [hip-0027: Bring .helmignore to parity with .gitignore file targeting syntax](hip-0027.md)
+- [hip-0028: Forward compatibility: Chart.yaml minimumHelmVersion](hip-0028.md)

hips/hip-XXXX.md hips/hip-0028.mdhips/hip-XXXX.md renamed to hips/hip-0028.md

@@ -1,5 +1,5 @@
 ---
-hip: 9999
+hip: "0028"
 title: "Forward compatibility: Chart.yaml minimumHelmVersion"
 authors: [ "George Jenkins <gvjenkins@gmail.com>" ]
 created: "2024-11-18"