chore: fix some minor formattng issues and linter warnings

docs/docgen.nix

@@ -85,7 +85,7 @@ stdenvNoCC.mkDerivation {
                 --file "${file}" > "src/${mdPath}"
             '';
             summaryLine = "${indent}- [${title}](${mdPath})";
-            sortKey = builtins.toString order + mdPath;
+            sortKey = toString order + mdPath;
           }
         ) nixFiles
       );
@@ -113,7 +113,7 @@ stdenvNoCC.mkDerivation {
       ${nixdocScripts}
 
       cat > src/SUMMARY.md <<EOF
-      ${summaryContent} 
+      ${summaryContent}
       EOF
     '';
 

docs/src/404.md

@@ -1,3 +1,3 @@
 # 404((
 
-This URL is invalid, sorry.
+This URL is invalid, sorry.

docs/src/evalSecrets.md

@@ -6,4 +6,4 @@ To handle this, __currently__ i use strange approach: I manually encrypt files w
 [git-agecrypt](https://github.com/vlaci/git-agecrypt) wasn't suitable for me.
 In future, i will replace it with my own implementation of transparent git encryption based on sops.
 
-Also, this used only for secrets which may be safely left in world-readable store. For more sensitive secrets I use `sops-nix`, which decrypts secrets only at runtime.
+Also, this used only for secrets which may be safely left in world-readable store. For more sensitive secrets I use `sops-nix`, which decrypts secrets only at runtime.