Added stackable option for SED -E

Replaced single replacements with -i instead of -i -e.

Added two examples of the stackable -e functionallity

Sed.md

@@ -3,35 +3,48 @@
 ### DOMAINname: shoud be replaced with $domain
 Example:
 ```
-sed -i -e 's/DOMAINname/'$domain'/' <FileName>
+sed -i 's/DOMAINname/'$domain'/' <path/to/filename>
+
 ```
 
 ### PHPver: shoud be replaced with $phpver
 Example:
 ```
-sed -i -e 's/PHPver/'$phpver'/' <FileName>
+sed -i 's/PHPver/'$phpver'/' <path/to/filename>
 ```
 
 ### PASSword: shoud be replaced with $PASSword
 Example:
 ```
-sed -i -e 's/PASSword/'$PASSword'/' <FileName>
+sed -i 's/PASSword/'$PASSword'/' <path/to/filename>
 ```
 
 ### DBName: shoud be replaced with $db_name
 Example:
 ```
-sed -i -e 's/DBName/'$db_name'/' <FileName>
+sed -i 's/DBName/'$db_name'/' <path/to/filename>
 ```
 
 ### DBUser: shoud be replaced with $db_user
 Example:
 ```
-sed -i -e 's/DBUser/'$db_user'/' <FileName>
+sed -i 's/DBUser/'$db_user'/' <path/to/filename>
 ```
 
 ### DBPass: shoud be replaced with $db_pass
 Example:
 ```
-sed -i -e 's/DBPass/'$db_pass'/' <FileName>
+sed -i 's/DBPass/'$db_pass'/' <path/to/filename>
+```
+
+### Replacing multiple variables within the same file:
+The -e option is stackable, you can add as many as you want within a single file.
+Example
+```
+sed -i -e 's/DBPass/'$db_pass'/' -e 's/DBUser/'$db_user'/' <path/to/filename>
+
+or:
+
+sed -i -e 's/DBName/'$db_name'/' -e 's/DBUser/'$db_user'/' -e 's/DBPass/'$db_pass'/' <path/to/filename>
+
 ```