Update usage of B_CLI_TELEMETRY flag in CI pipelines (#563)

* Update usage of B_CLI_TELEMETRY flag in CI pipelines

* Fix Typos

Co-authored-by: Chris Mullins <cleemullins@users.noreply.github.com>

README.md

@@ -74,6 +74,15 @@ Privacy is very important to us. BF CLI contains optional instrumentation that i
 
 To disable data collection see the  __*bf config*__ command.
 
+### Enable Telemetry in Continuous Integration Pipelines
+
+It is possible to bypass prompting while enabling telemetry collection in Continuous Integration / Continous Deployment pipeline environments. Per above, Microsoft will only collect anonymous data to help improve the CLI. To set your CI/CD pipeline telemetry collection behavior set the following OS environment variable:
+
+* set BF_CLI_TELEMETRY = true  : Bypass prompts and **enables** telemetry collection.
+* set BF_CLI_TELEMETRY = false : Bypass prompts and **disables** telemetry collection (default).
+* BF_CLI_TELEMETRY = null (absent) : If no value is set in configuration file defaults to false - disabled.
+
+
 Please refer to [Microsoft Privacy Statement](https://privacy.microsoft.com/en-US/privacystatement) for more details.  
 
 ## Contributing