Add doc about configuring TLS with Helm #9609

Job	Run time
Lint	1m 6s
Run Unit Tests (test-with-cover-pkg)	1m 6s
Run Unit Tests (test-with-cover-tempodb)	1m 6s
Benchmark	1m 7s
Run Unit Tests (test-with-cover-tempodb-wal)	1m 5s
Run Unit Tests (test-with-cover-others)	1s
Build	1m 5s
Run integration tests (test-e2e)	1m 5s
Build technical documentation	19s
Run integration tests (test-integration-poller)	1m 6s
Run integration tests (test-e2e-deployments)	1m 5s
Check jsonnet & tempo-mixin	48s
Run integration tests (test-e2e-serverless)	1m 5s
Vendor check	1m 4s
	13m 8s

Provide feedback