diff --git a/README.md b/README.md
index 1f35c7e..62bef11 100644
--- a/README.md
+++ b/README.md
@@ -10,13 +10,13 @@
 - **expensions :**
 	- `$` *variable expension*
 	- `$?` *exit return of last executed process*
-- **quotes :**
-	- `'`  *(ignore any special characters)* --> [ressource](https://linuxhandbook.com/quotes-in-bash/)
+- **quotes :** --> [ressource](https://linuxhandbook.com/quotes-in-bash/)
+	- `'`  *(ignore any special characters)*
 	- `"`  *(ignore any special characters except '$')*
-- **redirection :**
+- **redirections & heredocs :** --> [ressource](https://www.gnu.org/software/bash/manual/html_node/Redirections.html) / [heredocs for readability](https://www.techrepublic.com/article/use-heredoc-in-shell-scripts/)
 	- `<` *redirect input*
 	- `>` *redirect output*
-	- `<<` *read input until empty line -- doesn't update history*
+	- `<<` *read input until empty line --* **? doesn't update history ?**
 	- `>>` *redirect and append*
 - **signals :**
 	- `^C` *close process*