docs: add information about resourcesPreset kafka (#1741)

Author: patsevanton

charts/sentry/values.yaml

@@ -2230,7 +2230,8 @@ kafka:
     nodeSelector: {}
     # tolerations: []
     ## if the load on the kafka controller increases, resourcesPreset must be increased
-    # resourcesPreset: small # small, medium, large, xlarge, 2xlarge
+    # resourcesPreset: "small" # "small", "medium", "large", "xlarge", "2xlarge"
+    # More information: https://github.com/bitnami/charts/blob/main/bitnami/common/templates/_resources.tpl#L15
     ## if the load on the kafka controller increases, persistence.size must be increased
     # persistence:
     #   size: 8Gi