Initial codespace branch and associated docs

Author: danuw

.devcontainer/devcontainer.json

@@ -13,6 +13,13 @@
 	// Use 'appPort' to create a container with published ports. If the port isn't working, be sure
 	// your server accepts connections from all interfaces (0.0.0.0 or '*'), not just localhost.
 	// "appPort": [],
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	"forwardPorts": [5073],
+	// "portsAttributes": {
+	//   "5073": {
+	//     "protocol": "https"
+	//   }
+	// },
 
 	// Uncomment the next line to run commands after the container is created.
 	// "postCreateCommand": "rustc --version",

docs/codespaces.md

@@ -0,0 +1,29 @@
+Launching the SDK in github Codespaces
+========
+
+> Note: These instructions do not include anything about 
+
+Browse to the folder
+```sh
+cd src/CarbonAware.WebApi/src/
+```
+
+Run the project
+```sh
+dotnet run
+```
+
+It should look like that
+
+![sceenshot of the terminal view starting the webapi in codespaces](./images/codespaces-terminal-1.png)
+
+You can then select the browser icon to open in the browser
+
+![codespaces port tab](./images/codespaces-ports-1.png)
+
+> Note: the URL to browse needs to have that format: https://<codespace public URL>/swagger
+
+Make sure to browser to the swagger UI by appending `/swagger` to the URL, and the following should open.
+
+![sceenshot of the browser view starting the webapi and navigating to the Swagger UI](./images/codespaces-browser-1.png)
+