docs(samples): add loadFromSecret config to runtime-config.yaml

Signed-off-by: Vaughn Dice <[email protected]>

Author: vdice

config/samples/runtime-config.yaml

@@ -7,6 +7,12 @@ spec:
   replicas: 1
   executor: containerd-shim-spin
   runtimeConfig:
+    # loadFromSecret is the name of the secret to load runtime config from.
+    # The secret should have a single key named "runtime-config.toml" that contains the base64 encoded runtime config.
+    # If this is provided all other runtime config is ignored.
+    #
+    # loadFromSecret: runtimeconfig-secret
+
     sqliteDatabases:
       - name: "default"
         type: "libsql"