unify yaml -> yml

Author: yuyuyureka

flake.nix

@@ -159,7 +159,7 @@
         ;
 
         cfgfile = pkgs.writeTextFile {
-          name = "config.yaml";
+          name = "config.yml";
           text = builtins.toJSON cfg.settings;
           checkPhase = ''
             RUST_LOG=trace FERNGLAS_CONFIG_CHECK=true ${fernglasPkgs.fernglas}/bin/fernglas $out
@@ -194,7 +194,7 @@
 
           settings = mkOption {
             type = settingsFormat.type;
-            description = "Fernglas configuration, which will be 1:1 translated to the config.yaml";
+            description = "Fernglas configuration, which will be 1:1 translated to the config.yml";
           };
         };
 

manual/src/deployment/container.md

@@ -17,7 +17,7 @@ We have two different images. One image contains the UI, which is statically bui
 docker pull ghcr.io/wobcom/fernglas:fernglas-0.2.1
 ```
 
-You need to write a config file to specify Fernglas configuration. This needs to be put under `/config/config.yaml` in the standard configuration.
+You need to write a config file to specify Fernglas configuration. This needs to be put under `/config/config.yml` in the standard configuration.
 See the chapter on [configuration](configuration/README.md) for more information on how to write the collectors configuration.
 
 ## Fernglas Frontend