🛠️ fix Laravel redis setup instructions, fixes #201

[tyler36]

How this PR Solves The Problem:

201 highlights an issue in the configuration of Redis with Laravel.

Manual Testing Instructions:

An example repo for testing is https://github.com/tyler36/redis-laravel-ddev-demo.

• Note: This repo was developed locally on DDEV 1.19-alpha5. At present, it will not work with Gitpod which is set to 1.18

Related Issue Link(s):

201

[tyler36]

You're right. Please confirm agin whyen you get a chance.

My demo project was called was called: 'redis-laravel-ddev-demo' So I ended up with:

REDIS_HOST=ddev-redis-laravel-ddev-demo-redis

Naming is hard.