move current linux documentation into "manual"

Signed-off-by: Kristoffer Dalby <[email protected]>

docs/running-headscale-linux.md → docs/running-headscale-linux-manual.md

@@ -1,5 +1,9 @@
 # Running headscale on Linux
 
+## Note: Outdated and "advanced"
+This documentation is considered the "legacy"/advanced/manual version of the documentation, you most likely do not
+want to use this documentation and rather look at the distro specific documentation (TODO LINK)[].
+
 ## Goal
 
 This documentation has the goal of showing a user how-to set up and run `headscale` on Linux.
@@ -94,7 +98,7 @@ tailscale up --login-server YOUR_HEADSCALE_URL
 Register the machine:
 
 ```shell
-headscale --user myfirstuser nodes register --key <YOU_+MACHINE_KEY>
+headscale --user myfirstuser nodes register --key <YOUR_MACHINE_KEY>
 ```
 
 ### Register machine using a pre authenticated key
@@ -113,6 +117,8 @@ tailscale up --login-server <YOUR_HEADSCALE_URL> --authkey <YOUR_AUTH_KEY>
 
 ## Running `headscale` in the background with SystemD
 
+:warning: **Deprecated**: This part is very outdated and you should use the [pre-packaged Headscale for this](./running-headscale-linux.md
+
 This section demonstrates how to run `headscale` as a service in the background with [SystemD](https://www.freedesktop.org/wiki/Software/systemd/).
 This should work on most modern Linux distributions.