Update Azure_app_signup_step_by_step.md

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Update README.md

Author: pranabdas

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 2. Navigate to Azure Active Directory
 
-![02.PNG](02.PNG)
+![02.PNG](/resources/02.PNG)
 
 
 3. Select App Registration
 
-![03.PNG](03.PNG)
+![03.PNG](/resources/03.PNG)
 
 4. Click New Registration
 
-![04.PNG](04.PNG)
+![04.PNG](/resources/04.PNG)
 
 5. Give a name to your app, set the redirect URL, and hit Registration button. 
 
-![05.PNG](05.PNG)
+![05.PNG](/resources/05.PNG)
 
 6. Note down the client ID and go to API permissions. 
 
-![06.PNG](06.PNG)
+![06.PNG](/resources/06.PNG)
 
 7. Click Add permissions, select Microsoft Graph. 
 
-![07.PNG](07.PNG)
+![07.PNG](/resources/07.PNG)
 
 8. Choose Delegated permission. 
 
-![08.PNG](08.PNG)
+![08.PNG](/resources/08.PNG)
 
 9. We will add Files.ReadWrite.All for our purpose. 
 
-![09.PNG](09.PNG)
+![09.PNG](/resources/09.PNG)
 
 10. Now go to Authentication tab, and enable Access token. Click the save button, and now we are all set to go.
 
-![10.PNG](10.PNG)
+![10.PNG](/resources/10.PNG)
 
 
 ```python

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 Looks all right. We have got the access token, and included in the HEADERS. You can print response to see more. 
 
-### List folders unde root
+### List folders under root directory
 
 We will pring both directory names and item-d