docs: fix tuning doc, correct the result json

it does not report the version, it never did

diff --git a/tuning.md b/tuning.md
index bc786d8..7ca16d0 100644 (file)
--- a/tuning.md
+++ b/tuning.md
@@ -22,9 +22,7 @@ Other sysctls can be modified as long as they belong to the network namespace (`
 
 A successful result would simply be:
 ```
-{
-  "cniVersion": "0.1.0"
-}
+{ }
 ```
 
 ## Network sysctls documentation