useless sudo in initiate

doc/bash_tips.md

@@ -61,3 +61,5 @@ count=$((count+1))
     >&2 echo $code
   fi
 ```
+
+## sudo -E or better source if already root

doc/index.md

@@ -1,10 +1,10 @@
 # Documentation
 
-## Initiate
+## Initiate again
 
 Rk: useful when timezone has changed or ghostty command has been installed afterwards
 
-`miaou-bash --self-upgrade`
+`miaou-bash --self-upgrade` #TODO: does not apply anymore
 
 ## debug, use of MIAOU_DEBUG