AWP-317: Update AWP doc with new ability to auto-install AccelerateWP free for all sites

Author: Mariia

docs/cloudlinux-os-plus/README.md

@@ -1468,6 +1468,8 @@ There are the following requirements to use AccelerateWP:
 
 #### Overview
 In the _CloudLinux Manager → AccelerateWP_ tab an administrator has the opportunity to provide end-users with a suite of features, which on its turn could be activated by end-users.
+To provide best experience,
+[activate free features for all end-users](/cloudlinux-os-plus/#activate-free-acceleratewp-for-all-users).
 
 ![](/images/AWPAdmin.png)
 
@@ -1510,6 +1512,31 @@ You may use the following filters to browse AccelerateWP statistics slices.
 * `Users with AccelerateWP Premium only` filter will show statistics for users who utilizes AccelerateWP Premium (Object Caching) feature; users who did not activated AccelerateWP Premium feature will be hidden
 
 
+### Activate free AccelerateWP for all users
+Use the `cloudlinux-awp-admin enable-feature` CLI command to
+ensure the best performance for every user. CLI command scans a
+server for all WP sites and activates the AccelerateWP feature
+suite for all users. Users with page caching or feature
+incompatibilities will be skipped.
+
+Scan the server in background mode and activate AccelerateWP
+where possible:
+```
+cloudlinux-awp-admin enable-feature --all
+```
+The output will state the number of users to be scanned and
+that the process is in progress.
+
+Check the status of activation:
+```
+cloudlinux-awp-admin enable-feature --status
+```
+The output will be either:
+* Activation is still in progress,
+* Activation is done. The message will state how many users
+were initially for the scan and for how many users AccelerateWP
+was successfully activated.
+
 ### Disable AccelerateWP for a particular user
 Use CLI commands to disable undesired optimization suites for a single user.