link to fixed ellie in readme

[harrysarson]

The ellie linked in the readme does not compile. This commit changes it to
link to an ellie that does.

The link is currently points to https://rebrand.ly/elm-cli, I don't know if link could keep pointing there and the forwarding changed to the new ellie (which is https://ellie-app.com/83xwGryJX9ya1) instead.

[harrysarson]

The updates to the ellie are

@@ -23,7 +23,7 @@ type alias LogOptions =

 programConfig : Program.Config CliOptions
 programConfig =
-    Program.config { version = "1.2.3" }
+    Program.config
         |> Program.add
             (OptionsParser.buildSubCommand "init" Init
                 |> OptionsParser.withDoc "initialize a git repository"

and

@@ -73,7 +73,7 @@ window.runCli = function() {
     .split(/\s+|\s*'([^']*)'|\s*"([^"]*)"/)
     .filter(element => element && element !== '')
   const args = ['', commandName, ...argsToAppend]
-  let program = Elm.Main.init({ flags: { argv: args } })
+  let program = Elm.Main.init({ flags: { argv: args, versionMessage: '1.2.3' } })
 
   program.ports.print.subscribe(message => printMessage(message, 'plain'))
   program.ports.printAndExitSuccess.subscribe(message => {

[dillonkearns]

Thank you @harrysarson!

Ellies aren't intended to stop working because they're supposed to lock in the package versions that the example was saved with. But this issue is unfortunately causing some examples to break:

ellie-app/ellie#121

But even if it weren't for that issue, it's good to have the Ellie reflect the latest API! I wish there was a nice way to save examples as part of the Github repo for the project, and then push up the changes to the Ellie examples somehow 🤔

It looks like rebrandly removed the feature that lets me update the link destination unfortunately. So I'll just merge this PR and use the direct link. Thanks so much for updating the example and submitting the PR! 🙏