Update readme history & contributors

Author: andrewconnell

README.md

@@ -22,6 +22,26 @@ If you just want the completed sample generated by following this lab, you can f
 
 - [Completed project](demos/03-add-msgraph)
 
+## Contributors
+
+|           Roles           |                                     Author(s)                                     |
+| ------------------------- | --------------------------------------------------------------------------------- |
+| Code / Tutorial / Support | Jason Johnston (Microsoft) [@jasonjoh](/jasonjoh)                                 |
+| Slides                    | Jeremy Thake (Microsoft) [@jthake-msft](/jthake-msft)                             |
+| QA                        | Andrew Connell (Microsoft MVP, Voitanos) [@andrewconnell](/andrewconnell)         |
+| QA                        | Julie Turner (Microsoft MVP, Sympraxis Consulting) [@juliemturner](/juliemturner) |
+
+## Version history
+
+| Version |       Date       |              Comments              |
+| ------- | ---------------- | ---------------------------------- |
+| 1.5     | May 24, 2019     | 2019Q4 content refresh             |
+| 1.4     | May 22, 2019     | Quickstart updates                 |
+| 1.3     | May 16, 2019     | Updated AAD app registration steps |
+| 1.2     | March 6, 2019    | 2019Q3 content refresh             |
+| 1.1     | February 8, 2019 | Added slides                       |
+| 1.0     | 2018             | Published                          |
+
 ## Disclaimer
 
 **THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.**