add vscode configuration

.vscode/extensions.json

@@ -0,0 +1,17 @@
+{
+	// See https://go.microsoft.com/fwlink/?LinkId=827846 to learn about workspace recommendations.
+	// Extension identifier format: ${publisher}.${name}. Example: vscode.csharp
+
+	// List of extensions which should be recommended for users of this workspace.
+	"recommendations": [
+		// Do not forget to link the system-wide dictionaries with:
+		//   mkdir -p ~/.config/Code/Dictionaries
+		//   ln -s /usr/share/myspell/* ~/.config/Code/Dictionaries
+		"ban.spellright",
+		"davidanson.vscode-markdownlint"
+	],
+	// List of extensions recommended by VS Code that should not be recommended for users of this workspace.
+	"unwantedRecommendations": [
+		
+	]
+}

.vscode/settings.json

@@ -0,0 +1,10 @@
+{
+    "spellright.language": [
+        "en_GB"
+    ],
+    "spellright.documentTypes": [
+        "markdown",
+        "latex",
+        "plaintext"
+    ]
+}