Repository: eza-community/eza (language: rust)

Issue:
bug: deb installation instructions use ascii-armored GPG key
in an ubuntu 20.04.6 container, I followed the deb instructions but get
```
$ sudo apt update
W: http://deb.gierens.de/dists/stable/InRelease: The key(s) in the keyring /etc/apt/trusted.gpg.d/gierens.asc are ignored as the file is not readable by user '_apt' executing apt-key.
W: GPG error: http://deb.gierens.de stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY EC29E2090CE3FD43
E: The repository 'http://deb.gierens.de stable InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
```

this is because the GPG key is armored. de-armoring it works

```
$ wget -qO- https://raw.githubusercontent.com/eza-community/eza/main/deb.asc | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/gierens.asc
$ sudo apt update
$ sudo chmod o+r /etc/apt/sources.list.dgierens.list 
$ apt list eza
Listing... Done
eza/stable 0.11.1 arm64
```


Discussion / hints:
Thanks for the issue and the hint, I'll update the `README.md` tomorrow.
For some reason the opposite worked for me. When I first tried to install the program, the `wget` line outputted unrecognizable characters. After a few minutes of troubleshooting, I removed the `gpg --dearmor` and it worked as normal.
![image](https://github.com/eza-community/eza/assets/133786254/0a311cf9-07f0-484a-ae87-27b6d5098fd0)


Fix patch:
diff --git a/README.md b/README.md
index 4a6e8770c..88e9fecbf 100644
--- a/README.md
+++ b/README.md
@@ -100,12 +100,19 @@ key is in this repo under [deb.asc](/deb.asc).
 
 To install eza from this repo use:
 ```bash
-wget -qO- https://raw.githubusercontent.com/eza-community/eza/main/deb.asc | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/gierens.asc
+wget -qO- https://raw.githubusercontent.com/eza-community/eza/main/deb.asc | sudo tee /etc/apt/trusted.gpg.d/gierens.asc
 echo "deb http://deb.gierens.de stable main" | sudo tee /etc/apt/sources.list.d/gierens.list
 sudo apt update
 sudo apt install -y eza
 ```
 
+**Note:** on some systems like Docker containers apt might require the key
+to be in dearmored format, then use this command instead:
+```bash
+wget -qO- https://raw.githubusercontent.com/eza-community/eza/main/deb.asc | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/gierens.asc
+```
+before proceeding with the others from above.
+
 ### Nix (Linux, MacOS)
 
 [![nixpkgs unstable package](https://repology.org/badge/version-for-repo/nix_unstable/eza.svg)](https://repology.org/project/eza/versions)


Test patch: