docs: add Shrinks99 as a contributor for doc (#22268)

Adds @Shrinks99 as a contributor for doc.

This was requested by stavros-k [in this
comment](https://github.com/truecharts/charts/pull/22257#issuecomment-2119730336)

[skip ci]

---------

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>

.all-contributorsrc

@@ -1909,7 +1909,8 @@
       "avatar_url": "https://avatars.githubusercontent.com/u/5672810?v=4",
       "profile": "https://github.com/Shrinks99",
       "contributions": [
-        "code"
+        "code",
+        "doc"
       ]
     },
     {