Remove mention of docker provider

README.md

@@ -1,22 +1,14 @@
 # ƒun
-
 [![Build Status](https://github.com/vercel/fun/workflows/Node%20CI/badge.svg)](https://github.com/vercel/fun/actions?workflow=Node+CI)
 
 Local serverless function λ development runtime.
 
- * Programmatic. A TypeScript API is exposed to trigger invocations.
- * Provider agnostic. AWS Lambda + other cloud providers planned.
- * Runtime agnostic. Node, go, python and custom runtime APIs.
- * Platform agnostic. Functions can be executed natively (e.g. macOS) or via Docker.
- * Zero setup needed. ƒun acquires the necessary runtime files (e.g. `node`).
-
-
 ## Example
 
 Given a Lambda function like this one:
 
 ```js
-// index.js
+// example/index.js
 exports.handler = function(event, context, callback) {
 	callback(null, { hello: 'world' });
 };
@@ -59,17 +51,9 @@ async function main() {
 main().catch(console.error);
 ```
 
+## Caveats
 
-## Providers
-
-ƒun has a concept of pluggable "providers", which are responsible for
-creating, freezing, unfreezing and shutting down the processes that execute the
-Lambda function.
-
-### `native`
-
-The `native` provider executes Lambda functions directly on the machine executing
-ƒun. This provides an execution environment that closely resembles the
+ƒun provides an execution environment that closely resembles the
 real Lambda environment, with some key differences that are documented here:
 
  * Lambdas processes are ran as your own user, not the `sbx_user1051` user.
@@ -83,13 +67,6 @@ real Lambda environment, with some key differences that are documented here:
    for your operating system. So if you are on macOS, then the binary needs to be
    executable on macOS.
 
-### `docker`
-
-A `docker` provider is planned, but not yet implemented. This will allow for an
-execution environment that more closely matches the AWS Lambda environment,
-including the ability to execute Linux x64 binaries / shared libraries.
-
-
 ## Runtimes
 
 ƒun aims to support all runtimes that AWS Lambda provides. Currently