Added Quickstart info

Author: ArneTR

content/en/docs/prologue/quick-start.md

@@ -2,114 +2,20 @@
 title: "Quick Start"
 description: "One page summary of how to measure a sample application."
 lead: "One page summary of how to measure a sample application."
-date: 2022-06-18T08:00:00+00:00
-draft: true
+date: 2025-04-28T08:00:00+00:00
+draft: false
 images: []
 menu:
   docs:
     parent: "prologue"
-weight: 130
+weight: 2000
 toc: true
 ---
 
-## Running a measurement with a GitHub Repository
+## Running GMT out of GitHub codespace
 
-The easiest way to run a measurement is to use our [Green Metrics Frontend](https://metrics.green-coding.io/request.html).
+If you do not want to install the Green Metrics Tool but just want to try out a quick running version use our [GitHub Codespace](https://github.com/green-coding-solutions/green-metrics-tool/).
 
-Here you can supply the link of our [easiest example application](https://github.com/green-coding-berlin/simple-example-application) and wait
-for an email to arrive to view a report.
+Just click on *Code* and then on *Create codespace on main* to start the Codespace. An interactive interface with instructions will guide you through first steps with the Green Metrics Tool.
 
-This example highlights that in order to measure an application you only need a repository which includes a
- [usage_scenario.json →]({{< relref "usage-scenario" >}}) file.
-
-
-## Running a measurement with a sample usage scenario
-
-
-### Prerequsites
-
-For the most basic setup you require:
-- a computer with a **Linux** operating system
-- `sudo` rights
-- `git`
-- `python3` including `pandas` and `pyyaml`
-- `docker` installed and preferably running in rootless-mode
-
-If you currently do not have these packages already available please refer to [Installation on Linux →]({{< relref "installation-linux" >}}), [Installation on macOS →]({{< relref "installation-macos" >}}) or [Installation on Windows (WSL) →]({{< relref "installation-windows" >}})
-
-If you already have that and want to skip the installation, please only add one entry to your `/etc/hosts`:
-
-`127.0.0.1 metrics.green-coding.internal api.green-coding.internal`
-
-### Setting up a sample measurement run
-
-We will make the most basic example our tool can handle:
-- Base of **Ubuntu** base container.
-- Add the package `stress` from `aptitude`
-- Just run a 5 seconds stress run with default metrics providers
-
-So let's start:
-```bash
-git pull https://www.github.com/green-coding-berlin/green-metrics-tool /tmp/green-metrics-tool && \
-cd /tmp/green-metrics-tool/Docker && \
-cp compose.yml.example compose.yml
-```
-Please now change the default password for your database. In our example we will use `superstar`
-```bash
-docker compose up -d && \
-cd /tmp && \
-mkdir easiest-application && \
-cd easiest-application && \
-touch usage_scenario.json
-```
-Now please copy the following code inside the usage_scenario.json.
-```json
-{
-    "name": "Stress Container One Core 5 Seconds",
-    "author": "Arne Tarara",
-    "architecture": "linux",
-    "setup": [
-          {
-            "name": "ubuntu-base-container",
-            "type": "container",
-            "identifier": "ubuntu",
-            "setup-commands": [
-                "apt update",
-                "apt install stress -y"
-            ]
-        }
-    ],
-    "flow": [
-        {
-            "name": "Stress",
-            "container": "ubuntu-base-container",
-            "commands": [
-
-                {
-                    "type": "console",
-                    "command": "stress -c 1 -t 5",
-                    "note": "Starting Stress"
-                }
-            ]
-        }
-    ]
-}
-
-```
-In the code you see the *identifier* which references the **Ubuntu** base image.
-
-Under *flow* you see that we are just calling `stress -c 1 -t 5`, which will stress our CPU for 5 seconds on one core.
-```bash
-cd /tmp/green-metrics-tool/tools && \
-python3 runner.py manual --folder /tmp/easiest-application --name testing-my-demo
-````
-
-You should see an example output like so:
-
-```bash
-Having usage scenario ....
-....
-Please access your report with the ID: XXXX-XXXX ...
-```
-
-Now you can view the report as the first item in your metrics dashboard at `http://metrics.green-coding.internal:9142`
+<center><img style="width: 300px;" src="/img/codespace.webp" alt="GitHub Codespace how to start"></center>