doc: fixed a spelling mistake.
@@ -72,7 +72,7 @@ If you want to receive one specific value you can run for example
kdb get system:/tests/passwd/root/gecos
```
-You can also export it as whole in any format you like, for example json
+You can also export it as whole in any format you like, for example JSON
```sh
kdb export system:/tests/passwd/root json
