More doc updates, explanation of serverless. (#228)

* More doc updates, explanation of serverless.

* Moved howto directory to examples and some minor doc updates.

* Added apps and routes docs.

* Fixes for Carlos' comments.

* Added bit about importing lambda functions.

docs/README.md

@@ -1,16 +1,25 @@
-
 # IronFunctions Documentation
 
-* [IronFunctions Run Options](options.md)
-* [Writing Functions](function-format.md)
+## For Developers
+
+If you are a developer using IronFunctions through the API, this section is for you.
+
+* [Quickstart](https://github.com/iron-io/functions#quickstart)
+* [CLI tool - fnctl](../fnctl/README.md)
+* [Writing functions](writing.md)
+* [Packaging functions](packaging.md)
+* [Open Function Format](function-format.md)
 * [API Reference](https://app.swaggerhub.com/api/iron/functions/)
+
+## For Operators
+
+If you are operating IronFunctions, this section is for you.
+
 * [Running in Production](production.md)
 * [Databases](databases/README.md)
 * [Message Queues](mqs/README.md)
 * [Logging](logging.md)
 * [Metrics](metrics.md)
-* [Function Memory Requirements](memory.md)
 * [Triggers](triggers.md)
 * [Extending IronFunctions](extending.md)
 * [Docker Configuration](docker.md)
-* [Function Format](function-format.md)