Fix CMake message when telemetry is disabled

[ptheywood]

Fix CMake message when telemetry is disabled

Minor syntax fix, some indentation and a correct URI.

Fixes method namespacing suggested by the Telemetry::encourageUsage

Closes #1029

[ptheywood]

New output when configuring with telemetry disabled:

...
-- flamegpu version 2.0.0-rc.1+6aca1e04
-- FLAMEGPU_SHARE_USAGE_STATISTICS is not selected. 

   Support for academic software is dependant on evidence of impact. 
   Enabling this option sends minimal anonymous usage statistics so 
   that we can continue to develop the software under a FOSS licence.
   See our documentation for more information of what we collect and 
   why: https://docs.flamegpu.com/guide/telemetry
-- -----Configuring Project: boids_bruteforce-----
...