further updates

step2-01/README.md

@@ -163,11 +163,11 @@ someFunctionAsync().then(result => {
 
 # Exercise
 
-Please complete all exercises inside the `exercise/src` folder unless otherwise specified. First, open up [Step2-01 exercise page](http://localhost:8080/step2-01/exercise/) to see the results while you're implementing things.
+Exercises will be completed under this step's `exercise/src` folder unless otherwise noted. You'll also want to open the [Step2-01 exercise page](http://localhost:8080/step2-01/exercise/) to see the results as you work.
 
 ## Modules
 
-1. Open the file called `index.ts` in VS Code
+1. Open the file `exercise/src/index.ts` in VS Code
 
 2. Create another module file called `fibonacci.ts`