Update README.md (#1)

Add links to requirements.
Fix minor typos and wording issues.

Signed-off-by: Lenz Grimmer <lenz@grimmer.com>

README.md

@@ -2,19 +2,19 @@
 
 ## Requirements
 
-- Hetzner Cloud API Token
-- Packer
-- Butane
-- Hetzner Cloud CLI (`hcloud`)
+- [Hetzner Cloud API Token](https://docs.hetzner.com/cloud/api/getting-started/generating-api-token/)
+- [Packer](https://developer.hashicorp.com/packer)
+- [Butane](https://coreos.github.io/butane/)
+- [Hetzner Cloud CLI](https://github.com/hetznercloud/cli) (`hcloud`)
 
-This only works on Flatcar > `3913.0.0`, as this version has the appropriate versions of `ignition` and `afterburn` that
-add support for the Hetzner Cloud metadata service.
+This only works on Flatcar version `3913.0.0` (or later), as this version has the appropriate versions of
+`ignition` and `afterburn` that include support for the Hetzner Cloud metadata service.
 
 ## Building Snapshots
 
 ```shell
 $ git clone ... # TODO
-$ export HCLOUD_TOKEN=...
+$ export HCLOUD_TOKEN=<Your Hetzner Cloud API Token>
 $ packer init flatcar.pkr.hcl
 $ butane butane-oem.yaml --pretty --strict --output=ignition-oem.json
 
@@ -32,7 +32,7 @@ ID          TYPE       NAME   DESCRIPTION         ARCHITECTURE   IMAGE SIZE   DI
 157132252   snapshot   -      flatcar-alpha-arm   arm            0.42 GB      40 GB       Sat Mar 30 16:48:24 CET 2024   -
 ```
 
-## Create a Sever
+## Create a Server
 
 You can now create a new server from the snapshot. Not every feature might automatically work, as the snapshot is
 missing the functionality from [`hc-utils`](https://github.com/hetznercloud/hc-utils). Configuring SSH Keys and User
@@ -45,7 +45,7 @@ $ SNAPSHOT_ID=$(hcloud image list --type=snapshot --selector=os=flatcar --archit
 # Create a new server
 # If you have, you can specify an Ignition config with `--user-data-from-file ignition-user.json`
 $ hcloud server create --name flatcar-test --image $SNAPSHOT_ID --type cx11 --ssh-key <your-key>
-# Takes a minute or two
+# Wait about a minute or two for the server to be started
 
 # Now you can login, the following is a helper that calls `ssh` with the public ipv4 address of the server
 $ hcloud server ssh flatcar-test