FAQ: fluentd rollout (#442)

* add FAQ: fluentd rollout

* update fluentd FAQ

* add tags to title and description for fluentd

content/faq/fluentd-rollout.md

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+---
+title: "How will `fluentd` be rolled out?"
+description: "We deploy `fluentd` as a `DaemonSet` that runs on all nodes."
+tags:
+- fluentd
+- DaemonSet
+- logs
+---
+
+## Question
+
+How will `fluentd` be rolled out?
+
+
+## Answer
+
+We deploy `fluentd` as a `DaemonSet` that runs on all nodes. It forwards/annotates all logs with contextual information, then ships it to a log sink. We've used Datadog logs, CloudWatch logs, and ElasticSearch. It supports a multitude of other backends, including Splunk and S3.
+
+More information is available [here.](https://github.com/cloudposse/charts/tree/master/incubator/fluentd-kubernetes)