Update vtctld2 README with node v8.17 requirement

Signed-off-by: Sara Bee <855595+doeg@users.noreply.github.com>

web/vtctld2/README.md

@@ -11,15 +11,15 @@ This project was generated with [angular-cli](https://github.com/angular/angular
 You will need (very old!) installations of npm and node to run the front-end dev server. To check your versions:
 
 ```bash
-node -v # v8.0.0 required
-npm -v # 5.0.0 required
+node -v # v8.17.0 required
+npm -v # 6.13.4 required
 ```
 
 Using a node version manager like [nvm](https://github.com/nvm-sh/nvm) is strongly recommended, as the versions required by this project are several years out of date.
 
 1. Install nvm using the [installation guide](https://github.com/nvm-sh/nvm#installing-and-updating).
-1. Install node (and npm): `nvm install 8.0.0`
-1. In the shell you're using for vtctld UI development: `nvm use 8.0.0`
+1. Install node (and npm): `nvm install 8.17.0`
+1. In the shell you're using for vtctld UI development: `nvm use 8.17.0`
 
 ### Starting the dev server