Minor updates to README for 7.2

Author: tdonohue

README.md

@@ -35,7 +35,7 @@ https://wiki.lyrasis.org/display/DSDOC7x/Installing+DSpace
 Quick start
 -----------
 
-**Ensure you're running [Node](https://nodejs.org) `v12.x` or `v14.x`, [npm](https://www.npmjs.com/) >= `v5.x` and [yarn](https://yarnpkg.com) >= `v1.x`**
+**Ensure you're running [Node](https://nodejs.org) `v12.x`, `v14.x` or `v16.x`, [npm](https://www.npmjs.com/) >= `v5.x` and [yarn](https://yarnpkg.com) == `v1.x`**
 
 ```bash
 # clone the repo
@@ -90,14 +90,13 @@ Requirements
 ------------
 
 -	[Node.js](https://nodejs.org) and [yarn](https://yarnpkg.com)
--	Ensure you're running node `v12.x` or `v14.x` and yarn >= `v1.x`
+-	Ensure you're running node `v12.x`, `v14.x` or `v16.x` and yarn == `v1.x`
 
 If you have [`nvm`](https://github.com/creationix/nvm#install-script) or [`nvm-windows`](https://github.com/coreybutler/nvm-windows) installed, which is highly recommended, you can run `nvm install --lts && nvm use` to install and start using the latest Node LTS.
 
 Installing
 ----------
 
--	`yarn run global` to install the required global dependencies
 -	`yarn install` to install the local dependencies
 
 ### Configuring