Update az-overview.md

Made changes for upcoming Gartner review - removed services not meeting presence criteria
o	Cognitive Services: Speech
o	Cognitive Services: Immersive Reader 
o	Cognitive Services: Language Understanding 
o	Azure Machine Learning 
o	Notification Hubs

Author: sonu-arora

articles/availability-zones/az-overview.md

@@ -95,36 +95,31 @@ As mentioned previously, Azure classifies services into three categories: founda
 > | Azure Data Lake Storage Gen2           | Azure Active Directory Domain Services            | 
 > | Azure ExpressRoute                     | Azure Bastion                                     | 
 > | Azure Public IP                        | Azure Cache for Redis                             | 
-> | Azure SQL Database                     | Azure Cognitive Search                            | 
-> | Azure SQL Managed Instance             | Azure Cognitive Services                          | 
-> | Disk Storage                           | Azure Cognitive Services: Computer Vision         | 
-> | Event Hubs                             | Azure Cognitive Services: Content Moderator       | 
-> | Key Vault                              | Azure Cognitive Services: Face                    | 
-> | Load balancer                          | Azure Cognitive Services: Immersive Reader        | 
-> | Service Bus                            | Azure Cognitive Services: Language Understanding  | 
-> | Service Fabric                         | Azure Cognitive Services: Speech Services         | 
-> | Storage: Hot/Cool Blob Storage Tiers   | Azure Cognitive Services: Text Analytics          | 
-> | Storage: Managed Disks                 | Azure Cognitive Services: Translator              | 
-> | Virtual Machine Scale Sets             | Azure Data Explorer                               | 
-> | Virtual Machines                       | Azure Data Share                                  | 
-> | Virtual Machines: Azure Dedicated Host | Azure Database for MySQL                          | 
-> | Virtual Machines: Av2-Series           | Azure Database for PostgreSQL                     | 
-> | Virtual Machines: Bs-Series            | Azure DDoS Protection                             | 
-> | Virtual Machines: DSv2-Series          | Azure Firewall                                    | 
-> | Virtual Machines: DSv3-Series          | Azure Firewall Manager                            | 
-> | Virtual Machines: Dv2-Series           | Azure Functions                                   | 
-> | Virtual Machines: Dv3-Series           | Azure IoT Hub                                     |     
-> | Virtual Machines: ESv3-Series          | Azure Kubernetes Service (AKS)                    | 
-> | Virtual Machines: Ev3-Series           | Azure Machine Learning                            | 
-> | Virtual Network                        | Azure Monitor: Application Insights               | 
-> | VPN Gateway                            | Azure Monitor: Log Analytics                      | 
-> |                                        | Azure Private Link                                | 
-> |                                        | Azure Red Hat OpenShift                           | 
-> |                                        | Azure Site Recovery                               | 
-> |                                        | Azure Stream Analytics                            | 
-> |                                        | Azure Synapse Analytics                           | 
+> | Azure SQL Database                     | Azure Cognitive Services                          | 
+> | Azure SQL Managed Instance             | Azure Cognitive Services: Computer Vision         | 
+> | Disk Storage                           | Azure Cognitive Services: Content Moderator       | 
+> | Event Hubs                             | Azure Cognitive Services: Face                    | 
+> | Key Vault                              | Azure Cognitive Services: Text Analytics          | 
+> | Load balancer                          | Azure Data Explorer                               | 
+> | Service Bus                            | Azure Database for MySQL                          | 
+> | Service Fabric                         | Azure Database for PostgreSQL                     | 
+> | Storage: Hot/Cool Blob Storage Tiers   | Azure DDoS Protection                             | 
+> | Storage: Managed Disks                 | Azure Firewall                                    | 
+> | Virtual Machine Scale Sets             | Azure Firewall Manager                            | 
+> | Virtual Machines                       | Azure Functions                                   | 
+> | Virtual Machines: Azure Dedicated Host | Azure IoT Hub                                     | 
+> | Virtual Machines: Av2-Series           | Azure Kubernetes Service (AKS)                    | 
+> | Virtual Machines: Bs-Series            | Azure Monitor: Application Insights               | 
+> | Virtual Machines: DSv2-Series          | Azure Monitor: Log Analytics                      | 
+> | Virtual Machines: DSv3-Series          | Azure Private Link                                | 
+> | Virtual Machines: Dv2-Series           | Azure Site Recovery                               | 
+> | Virtual Machines: Dv3-Series           | Azure Synapse Analytics                           |     
+> | Virtual Machines: ESv3-Series          | Batch                                             | 
+> | Virtual Machines: Ev3-Series           | Cloud Services: M-series                          | 
+> | Virtual Network                        | Azure Site Recovery                               | 
+> | VPN Gateway                            | Azure Synapse Analytics                           | 
 > |                                        | Batch                                             | 
-> |                                        | Cloud Services: M-series                          | 
+> |                                        | Cloud Services : M-series                         | 
 > |                                        | Container Instances                               | 
 > |                                        | Container Registry                                | 
 > |                                        | Data Factory                                      | 
@@ -133,7 +128,6 @@ As mentioned previously, Azure classifies services into three categories: founda
 > |                                        | Logic Apps                                        | 
 > |                                        | Media Services                                    | 
 > |                                        | Network Watcher                                   | 
-> |                                        | Notification Hubs                                 | 
 > |                                        | Premium Blob Storage                              | 
 > |                                        | Premium Files Storage                             | 
 > |                                        | Virtual Machines: Ddsv4-Series                    | 
@@ -163,6 +157,7 @@ As mentioned previously, Azure classifies services into three categories: founda
 > | Azure Cognitive Services: Form Recognizer            |
 > | Azure Cognitive Services: Personalizer               |
 > | Azure Cognitive Services: QnA Maker                  |
+> | Azure Data Share                                     |
 > | Azure Database for MariaDB                           |
 > | Azure Database Migration Service                     |
 > | Azure Dedicated HSM                                  |
@@ -171,6 +166,7 @@ As mentioned previously, Azure classifies services into three categories: founda
 > | Azure HPC Cache                                      |
 > | Azure Lab Services                                   |
 > | Azure NetApp Files                                   |
+> | Azure RedHat Openshift                               |
 > | Azure SignalR Service                                |
 > | Azure Spring Cloud Service                           |
 > | Azure Time Series Insights                           |