improved readability

.vscode/extensions.json

@@ -2,5 +2,6 @@
   "recommendations": [
     "mads-hartmann.bash-ide-vscode",
     "rogalmic.bash-debug",
+    "mkhl.shfmt",
   ],
 }

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "editor.formatOnSave": true
+}