Update README.md

Author: DivyanshuSinha136

README.md

@@ -5,6 +5,11 @@ Easy to use and opensource.
 
 ## Install
 
+```python
+pip install pythonaibrain
+```
+Or,
+
 ```python
 git clone https://github.com/World-Of-Programming-And-Technology/PythonAI.git
 ```