diff --git a/web/README.md b/web/README.md
index 36eb1fb25..908676c55 100644
--- a/web/README.md
+++ b/web/README.md
@@ -32,7 +32,7 @@ yarn dev
 
 That's it. The web app will automatically hot reload when you make changes.
 
-If you're new to web development and unsure about how to get started,  or are
+If you're new to web development and unsure about how to get started, or are
 facing some problems when running the above steps, see [docs/new](docs/new.md).
 
 ## Other apps
diff --git a/web/docs/dev.md b/web/docs/dev.md
index 3f95da232..7f0247357 100644
--- a/web/docs/dev.md
+++ b/web/docs/dev.md
@@ -1,5 +1,15 @@
 # Development
 
+## Editor setup
+
+We recommend VS Code, with the following extensions:
+
+- Prettier - reformats your code automatically (enable format on save),
+- ESLint - warns you about issues
+- vscode-styled-components - improved support for our CSS in JS library
+
+Make sure you're on yarn 1.x series (aka yarn "classic").
+
 ## Yarn commands
 
 ### yarn dev:*