Add bats explanations in README

README.md

@@ -4,6 +4,8 @@ ECN lab about syntaxic analysis
 
 ## Dependencies
 
+### To make binary
+
 You need **GCC**, **flex** and **bison**.
 
 You can install them on debian based systems with :
@@ -12,6 +14,17 @@ You can install them on debian based systems with :
 sudo apt install flex bison
 ```
 
+### To run tests
+
+Tests are using [Bash Automated Testing System](https://github.com/bats-core/bats-core/)
+
+
+You can install them on debian based systems with :
+
+```
+sudo apt install bats
+```
+
 ## How to compile
 
 ```
@@ -21,6 +34,8 @@ make
 
 ## How to test
 
+You need to compile prior to test.
+
 ```
-./test.sh
+./test.bats
 ```