diff --git a/.gitignore b/.gitignore
index 31316bc..5183459 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,14 @@
+# Don’t commit the following directories created by pub.
+.buildlog
+.pub/
+build/
 packages
-.packages
-.pub
+
+# Or the files created by dart2js.
+*.dart.js
+*.js_
+*.js.deps
+*.js.map
+
+# Include when developing application packages.
 pubspec.lock
diff --git a/README.md b/README.md
index a72c4cb..b01c72b 100644
--- a/README.md
+++ b/README.md
@@ -7,4 +7,4 @@
 Add --install to the end if this is the first run.
 
 You may also want to debug any problems. Use dartanalyzer.
-dartanalyzer lib/main.dart
+dartanalyzer lib/main.dart
\ No newline at end of file