update readme

python/introduction/README.md

@@ -1,16 +1,14 @@
 ## introduction
+
 ```
-variables  
-list --> bisous.py programming.py  
-input --> bisous.py  
+For variables  --> see all scripts
+Working with lists --> see bisous.py programming.py  
+For user input from terminal or keyboard --> see bisous.py  
 print  
-for loop --> bisous.py
-conditional statements if/else/elif --> bisous.py
+for loop --> see bisous.py
+conditional statements if/else/elif --> see bisous.py
 break --> bisous.py  
-while loop --> missing.py
-dictionary
-enumerate
-return --> missing.py
-random --> programming.py
+while loop --> see missing.py
 function --> missing.py
+random --> programming.py
 ```