README.md in opentelemetry-instrumentation-mongo-0.20.0 vs README.md in opentelemetry-instrumentation-mongo-0.21.0

@@ -28,10 +28,24 @@
 OpenTelemetry::SDK.configure do |c|
   c.use_all
 end
 ```
 
+### Configuration options
+
+```ruby
+OpenTelemetry::SDK.configure do |c|
+  c.use 'OpenTelemetry::Instrumentation::Mongo', {
+    # Sets how db_statement appears in your traces. The options are:
+    # :obfuscate - (default) query parameters are visible, but values are masked.
+    # :include - query parameters and values are both fully visible.
+    # :omit - db_statement is omitted entirely.
+    db_statement: :include,
+  }
+end
+```
+
 ## Example
 
 To run the example:
 
 1. Start MongoDB using docker-compose
@@ -55,10 +69,9 @@
 Apache 2.0 license. See [LICENSE][license-github] for more information.
 
 [mongo-home]: https://github.com/mongodb/mongo-ruby-driver
 [bundler-home]: https://bundler.io
 [repo-github]: https://github.com/open-telemetry/opentelemetry-ruby
-[license-github]: https://github.com/open-telemetry/opentelemetry-ruby/blob/main/LICENSE
+[license-github]: https://github.com/open-telemetry/opentelemetry-ruby-contrib/blob/main/LICENSE
 [ruby-sig]: https://github.com/open-telemetry/community#ruby-sig
 [community-meetings]: https://github.com/open-telemetry/community#community-meetings
 [discussions-url]: https://github.com/open-telemetry/opentelemetry-ruby/discussions
-