Add formatter

.vscode/settings.json

@@ -1,12 +1,15 @@
 {
-	"files.associations": {
-		"images.h": "c",
-		"*.tcc": "cpp",
-		"deque": "cpp",
-		"string": "cpp",
-		"unordered_map": "cpp",
-		"unordered_set": "cpp",
-		"vector": "cpp",
-		"system_error": "cpp"
-	}
-}
+    // Suggest where to make a new line by adding two vertical lines
+    // Vertical lines, 79 works well for code reviews and diffs
+    "editor.rulers": [
+        79,
+        90
+    ],
+    "editor.formatOnSave": true,
+    "editor.minimap.enabled": false,
+    "workbench.colorCustomizations": {
+        "editorRuler.foreground": "#ff4081"
+    },
+    "files.insertFinalNewline": true,
+    "files.autoSave": "onFocusChange",
+}