fix gitignore for vscode

.gitignore

@@ -31,4 +31,8 @@ test/test-cli-output/
 *.swo
 
 # vscode
-.vscode/settings.json
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json

.vscode/settings.json

@@ -0,0 +1,11 @@
+{
+    "restructuredtext.confPath": "${workspaceFolder}/doc",
+    "files.watcherExclude": {
+        "**/.git/objects/**": true,
+        "**/.git/subtree-cache/**": true,
+        "**/node_modules/*/**": true,
+        "**/.eggs/**": true,
+        "**/.hypothesis/**": true,
+        "**/.tox/**": true,
+      }
+}