Update index.md

docs/environments/index.md

@@ -50,7 +50,7 @@ Variables can be redacted from the output by setting `redact = true`:
 ```toml
 [env]
 SECRET = { value = "my_secret", redact = true }
-_.file = { path = [".env.json"], tools = true } # directives may also set redact = true
+_.file = { path = [".env.json"], redact = true, tools = true }
 ```
 
 ## `env._` directives