Update readme adding more ways to run Metabase (#42217)

* Update readme adding more ways to run Metabase

* Remove running from `master` because it could break

* Update enterprise/frontend/src/embedding-sdk/README.md

Co-authored-by: Alberto Perdomo <albertoperdomo@users.noreply.github.com>

* Update disclaimer, makes it more obvious

---------

Co-authored-by: Alberto Perdomo <albertoperdomo@users.noreply.github.com>

enterprise/frontend/src/embedding-sdk/README.md

@@ -19,19 +19,28 @@ Features planned:
 
 * You have an application using React 17 or higher
 * You have a Pro or Enterprise [subscription or free trial](https://www.metabase.com/pricing/) of Metabase
-* You have a running Metabase instance using the enterprise binary. Currently, only master is supported until Metabase 50 is released.
+* You have a running Metabase instance using a compatible version of the enterprise binary. For now, we supply specific compatible versions as Jar files and Docker images. Note these are not considered stable.
 
 # Getting started
 
-## Start a local build of Metabase from master
+## Start Metabase
 
-1. Check out the code from the metabase repo
-```git clone git@github.com:metabase/metabase.git```
-1. Move into the repo and start it
-```cd metabase && yarn dev-ee```
-1. Metabase will be running at http://localhost:3000/
-1. Go through the setup process
-1. Make sure to activate your license. You can do this during the setup process or after, from the admin settings
+Currently, the SDK only works with specific versions of Metabase.
+You have the following options:
+
+### 1. Running on Docker
+Start the Metabase container:
+```bash
+docker run -d -p 3000:3000 --name metabase metabase/metabase-dev:embedding-sdk-0.1.0
+```
+
+### 2. Running the Jar file
+1. Download the Jar file from http://downloads.metabase.com/sdk/v0.1.0/metabase.jar
+2. Create a new directory and move the Metabase JAR into it.
+3. Change into your new Metabase directory and run the JAR.
+```bash
+java -jar metabase.jar
+```
 
 ## Configure Metabase