updated instruction in snippets README

Author: jar-stripe

examples/snippets/README.md

@@ -7,7 +7,7 @@ If on step 2 you see an error `Error: unsure how to copy this: /Users/jar/stripe
 run `rm /path/to/node/sdk/.git/fsmonitor--daemon.ipc && yarn`
 This file is used by a file monitor built into git. Removing it temporarily does not seem to affect its operation, and this one liner will let `yarn` succeed.
 
-Note that if you modify the stripe-node code, you must delete your snippets `node_modules` folder and rerun these steps.
+Note that if you modify the stripe-node code, rerun step 1 and then run `yarn upgrade stripe` from this folder to pull in the new built package.
 
 ## Running an example