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@@ -1,3 +1,11 @@
 # php-chrooter
 
-Use [chroot with PHP](https://www.php.net/manual/fr/function.chroot.php) anbd isolate your website 
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+Use [chroot with PHP](https://www.php.net/manual/fr/function.chroot.php) anbd isolate your website.
+
+To use it, edit chroot.sh and edit 3 variables :
+
+| Variable | Description |
+| -------- | ----------- |
+| CHROOTPATH | The path where this script store all files, bin, lib needed to chroot website (create this before) | 
+| ZONEINFO | The path where zoneinfo is stored. Find this with `find /usr -type d -name "zoneinfo"` |
+| libnss_dns | The path where libnss_dns lib is stored. Use `find /lib /usr/lib -name libnss_dns.so.2` to find lib. |
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