Update README.md

Adding IP validation variable into readme.

README.md

@@ -22,8 +22,9 @@ Installing the edge worker the first time requires uploading an archive file (TG
    - **Section [QueueIT variables](#queueit-variables) describes queue-it variables in detail.**
  - Step 7: In Akamai Property, create a behaviour for the URL/Hostname/Conditions where the edge worker will apply choose the name of EdgeWorker created in the upper section (make sure you are not executing edgeworker for static resources)
  - [Step 8: Add a Site Failover behavior to retry if EdgeWorker fails](#adding-a-site-failover-behaviour)
- - Step 9: Add integration config download criteria condition, behavior and cache if integration config download method is used.
- - Step 10: Deploy the updated Akamai Property configuration
+ - [Step 9: Add a user varible PMUSER_TRUE_CLIENT_IP and a behaviour to set PMUSER_TRUE_CLIENT_IP variable to {{builtin.AK_CLIENT_REAL_IP}}](#adding-set-ip-behaviour)
+ - Step 10: Add integration config download criteria condition, behavior and cache if integration config download method is used.
+ - Step 11: Deploy the updated Akamai Property configuration
 
 ** https://learn.akamai.com/en-us/webhelp/edgeworkers/edgeworkers-user-guide/GUID-53F43F70-BEBC-4BA4-A2FB-3F23A6125106.html 
 
@@ -37,6 +38,10 @@ First, create a PMUSER variable, with an arbitrary name, and set the value to %(
 Then add a Site Failover behaviour that uses the PMUSER variable from above, and has the following settings:
 ![Site Failover Behaviour](https://github.com/queueit/KnownUser.V3.Akamai/blob/master/documentation/failover2.png)
 
+## Adding Set IP behaviour
+Connector might need to validate visitor IP, so you need to define a PMUSER variable with name PMUSER_TRUE_CLIENT_IP and add a behaviour to set the value for this by {{builtin.AK_CLIENT_REAL_IP}} expression.
+
+![Visitor IP Behaviour](https://github.com/queueit/KnownUser.V3.Akamai/blob/master/documentation/setIpVariableBehaviour.png)
 ## QueueIT variables
 To integrate with QueueIT Akamai connector it is required to define queueit variables in your Akamai property.   
 These variables should be named as 'PMUSER_QUEUEIT_CUSTOMERID', 'PMUSER_QUEUEIT_CONFIG_TYPE', 'PMUSER_QUEUEIT_SECRET_KEY', 'PMUSER_QUEUEIT_API_KEY' 
@@ -48,10 +53,12 @@ and of type **Hidden** in Akamai property manager. The following table describes
 | PMUSER_QUEUEIT_SECRET_KEY | Yes | Find your Secret key in the GO Queue-it Platform. |
 | PMUSER_QUEUEIT_CONFIG_TYPE | Yes | 'inline' or 'cache' or 'edgekv' |
 | PMUSER_QUEUEIT_API_KEY | If 'PMUSER_QUEUEIT_CONFIG_TYPE' is set to cache  | Find your Api key in the GO Queue-it Platform. |
+| PMUSER_TRUE_CLIENT_IP | Yes | If enabled at waitingroom, it is used to validate the vistor IP by connector |
 | PMUSER_QUEUEIT_EXECUTED | For validation that the Queue-It EdgeWorker was executed | The Queue-It EdgeWorker will set the variable to `true`. This variable can be used in Akamai Property Manager to apply alternative logic if the EdgeWorker was not executed. | 
 | PMUSER_QUEUEIT_GENERATE_EQTOKEN| [Advanced enqueue token feature](#using-enqueueToken) | Optional boolean value ('true'/'false') where default is 'false'. |
 | PMUSER_QUEUEIT_EQTOKEN_VALIDITY_TIME | No | Default: 240000 ms if provided value is null or less than 30000 ms |
 
+
 ## Advanced features
 
 ### Ignoring OPTIONS requests