Update installation instructions for Linux

[tohar777]

Add note about limitations of AirSDK for Linux.

[marchbold]

Can you clarify what this heading is supposed to mean? I suppose you are talking about the license requirements for linux? Perhaps try using a callout:

:::note
Information here
:::

[tohar777]

I don't know if it's problem only in my system but adl refuses to work because I don't have a paid license
"
HARMAN are now supporting the latest AIR releases on Linux x86_64 and ARM64. Due to the work involved here, support is restricted to developers who have purchased a commercial license for AIR SDK (i.e. not the 'free tier' users). There is no 'shared runtime' available for Linux though, so .air files cannot be installed, and 'native' installation packages cannot be created with the AIR SDK. Applications needing distribution should be created as a 'bundle' with the captive runtime and then packaged for deployment using appropriate native Linux tools.
"
airsdk.harman.com/faq