Fix inconsistent reference to ts-node in docs

Author: cspotcode

website/docs/installation.md

@@ -15,4 +15,4 @@ npm install -g ts-node
 npm install -D tslib @types/node
 ```
 
-**Tip:** Installing modules locally allows you to control and share the versions through `package.json`. TS Node will always resolve the compiler from `cwd` before checking relative to its own installation.
+**Tip:** Installing modules locally allows you to control and share the versions through `package.json`. ts-node will always resolve the compiler from `cwd` before checking relative to its own installation.