Update README.md

Fixes small typo.

Author: Josef Ottosson

README.md

@@ -94,7 +94,7 @@ If you're interested in contributing to the various packages, samples, and proje
  * Run `dotnet restore` at the repo root dir
  * Go to whatever sample or template you want to run (for example, `cd templates/AngularSpa`)
  * Restore NPM dependencies (run `npm install`)
- * If the sample/template you're trying to run has a file called `webpack.config.vendor.js` at its root, run `webpack --config webpack.config.vendor.js`. It it has a file called `webpack.config.js`, run `webpack` (no args). You might need to install webpack first, by running `npm install -g webpack`.
+ * If the sample/template you're trying to run has a file called `webpack.config.vendor.js` at its root, run `webpack --config webpack.config.vendor.js`. If it has a file called `webpack.config.js`, run `webpack` (no args). You might need to install webpack first, by running `npm install -g webpack`.
  * Launch it (`dotnet run`)
 
 If you're planning to submit a pull request, and if it's more than a trivial fix (for example, for a typo), it's usually a good idea first to file an issue describing what you're proposing to do and how it will work. Then you can find out if it's likely that such a pull request will be accepted, and how it fits into wider ongoing plans.