SDK docs should include at least some configuration values with better defaults

We should give short config options in our sdk docs. I think it's fine to refer to sentry sdk docs for a complete listing but many recent sentry SDK choices are creating unwanted behavior. The biggest is that tracing is enabled by default now which chews through event quotas and disk space. Personally, I think it should be off by default. But short of forking the SDK's, we should mention more sensible defaults and let the end user decide.