Update microsoft-power-bi-quiz.md (#841)

* Update microsoft-power-bi-quiz.md

Q11 answered, proof link: https://docs.microsoft.com/en-us/power-bi/transform-model/desktop-query-overview
Q13 answered, proof link: https://docs.microsoft.com/en-us/power-bi/visuals/service-tips-and-tricks-for-color-formatting, https://www.edureka.co/community/26060/how-do-i-undo-something-in-power-bi
Q18 answered, proof link: https://docs.microsoft.com/en-us/power-bi/visuals/service-getting-started-with-color-formatting-and-axis-properties

* Answers to questions 11, 13, 18

Proof links added

microsoft-power-bi/microsoft-power-bi-quiz.md

@@ -93,7 +93,7 @@ Q11. What can you do within the Power Bl Desktop Query Settings pane? (Select al
     D. Reorder the steps.
 
     [ ] B, C, D
-    [ ] A, B, C, D
+    [X] A, B, C, D <<< proof link: https://docs.microsoft.com/en-us/power-bi/transform-model/desktop-query-overview
     [ ] A, B, D
     [ ] A, B, C
 
@@ -106,7 +106,7 @@ Q12. After you enter text in the Q&A box or O&A visual, Power Bl will \_ your da
 
 Q13. You just deleted a dashboard in the Power Bl service and want to get it back. What should you do?
 
-    [ ] Press Ctrl+Z.
+    [X] Press Ctrl+Z. <<< proof link: https://docs.microsoft.com/en-us/power-bi/visuals/service-tips-and-tricks-for-color-formatting, https://www.edureka.co/community/26060/how-do-i-undo-something-in-power-bi
     [ ] Select Undo from the toolbar.
     [ ] You cannot undo the deletion of a dashboard.
     [ ] Recover it from the Recycle Bin.
@@ -146,7 +146,7 @@ Q17. One of your data columns includes the city, state, and postal code line of
 
 Q18. Formatting options within a visualization depend on what?
 
-    [ ] the visualization you are formatting
+    [X] the visualization you are formatting <<< proof link: https://docs.microsoft.com/en-us/power-bi/visuals/service-getting-started-with-color-formatting-and-axis-properties
     [ ] the editor you use
     [ ] the visualization group
     [ ] your permissions