Update README.md

README.md

@@ -107,6 +107,10 @@ Open a terminal in the `tutorial-conway-life-t3` directory.
 
    Now reload the page, and the code should still work.
    
+   Note: some students who've set up npm on their own machine might find they don't have npx (at least, one in the tutorial did). 
+   If so, just imagine you've run npx webpack and keep on going to step 8 -- we won't usually be using the npx command to run
+   webpack anyway.
+
 8. Next, let's tell NPM that we build our project using webpack. In `package.json`, inside the `scripts` block, add
 
     ```json
@@ -144,10 +148,15 @@ Open a terminal in the `tutorial-conway-life-t3` directory.
     import * as d3 from "d3"
     ```
 
-    and
+    In render.ts, we'll need to export both the `life` constant and the `render`
+    function. So rather than use `export default`, we'll need to insert an
+    explicit export block
 
     ```ts
-    export default function render() {
+    export {
+      life as life,
+      render as render
+    }
     ```
 
     and in `src/index.ts`