update readme and fix typo

Author: razvan

CHANGELOG.md

@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+### Added
+
+- Experimental support for Spark Connect ([#539]).
+
+[#539]: https://github.com/stackabletech/spark-k8s-operator/pull/539
+
 ## [25.3.0] - 2025-03-21
 
 ### Added

Tiltfile

@@ -41,5 +41,3 @@ helm_crds, helm_non_crds = filter_yaml(
    kind = "^CustomResourceDefinition$",
 )
 k8s_yaml(helm_non_crds)
-
-allow_k8s_contexts('default')

docs/modules/spark-k8s/pages/usage-guide/spark-connect.adoc

@@ -24,7 +24,7 @@ include::example$example-spark-connect.yaml[]
 <5> Addition argument to be passed to the Spark Connect JVM. Do not use this to tweak heap settings. Use `spec.server.jvmOptions` instead.
 <6> A custom log4j configuration file to be used by the Spark Connect server. The config map must have an entry called `log4j.properties`.
 <7> Customize the driver properties in the `server` role. The number of cores here is not related to Kubernetes cores!
-<8> Customize `spark.executor.*` and `spark.kubernetes.executor.*` in the `executor` role.
+<8> Customize `spark.executor.\*` and `spark.kubernetes.executor.*` in the `executor` role.
 
 == Notable Omissions