Update README.md

Author: milaan9

README.md

@@ -78,9 +78,9 @@ Go [**`here`**](https://github.com/milaan9/11_Python_Matplotlib_Module) if you a
 
     ![Download ZIP](img/dnld_rep.png)
 
-3. Extract the ZIP and open it. Unfortunately I don't have any more specific instructions because how exactly this is done depends on which operating system you run.
+2. Extract the ZIP and open it. Unfortunately I don't have any more specific instructions because how exactly this is done depends on which operating system you run.
 
-4. Launch ipython notebook from the folder which contains the notebooks. Open each one of them
+3. Launch ipython notebook from the folder which contains the notebooks. Open each one of them
 
     **`Kernel > Restart & Clear Output`**