Add azure machines for under 1000 users

doc/administration/reference_architectures/1k_users.md

@@ -7,11 +7,11 @@ For a full list of reference architectures, see
 > - **Supported users (approximate):** 1,000
 > - **High Availability:** False
 
-| Users | Configuration([8](#footnotes)) | GCP type      | AWS type([9](#footnotes)) |
-|-------|--------------------------------|---------------|---------------------------|
-| 100   | 2 vCPU, 7.2GB Memory           | n1-standard-2 | c5.2xlarge                |
-| 500   | 4 vCPU, 15GB Memory            | n1-standard-4 | m5.xlarge                 |
-| 1000  | 8 vCPU, 30GB Memory            | n1-standard-8 | m5.2xlarge                |
+| Users | Configuration([8](#footnotes)) | GCP           | AWS([9](#footnotes)) | Azure([9](#footnotes)) |
+|-------|--------------------------------|---------------|----------------------|------------------------|
+| 100   | 2 vCPU, 7.2GB Memory           | n1-standard-2 | m5.large             | D2s v3                 |
+| 500   | 4 vCPU, 15GB Memory            | n1-standard-4 | m5.xlarge            | D4s v3                 |
+| 1000  | 8 vCPU, 30GB Memory            | n1-standard-8 | m5.2xlarge           | D8s v3                 |
 
 For situations where you need to serve up to 1,000 users, a single-node
 solution with [frequent backups](index.md#automated-backups-core-only) is appropriate