Document "yarn pack" command

README.md

@@ -22,6 +22,7 @@ You can see it live at [https://stake.eosnetwork.com](https://stake.eosnetwork.c
     1. [Initialization](#initialization)
     1. [Build](#build)
     1. [Start](#start)
+    1. [Pack](#pack)
 1. [See Also](#see-also)
 
 <!-- contents markdown end -->
@@ -80,6 +81,35 @@ yarn start
 
 Press `[Ctrl]` + `[C]` to stop the server.
 
+### Pack
+You can pack the build products into a `*.tgz` archive for easy distribution.
+```bash
+yarn pack
+```
+This will generate a `*.tgz` archive in the root of the repo with a structure like this.
+```
+eosnetwork-rex-staking-v0.0.1.tgz
+└── package
+    ├── build
+    │   ├── abis
+    │   │   └── eosio.system.abi
+    │   ├── _app
+    │   │   ├── env.js
+    │   │   ├── immutable
+    │   │   │   ├── assets
+    │   │   │   ├── chunks
+    │   │   │   ├── entry
+    │   │   │   └── nodes
+    │   │   └── version.json
+    │   ├── favicon.png
+    │   ├── index.html
+    │   └── ogimage.png
+    ├── LICENSE
+    ├── package.json
+    └── README.md
+```
+This is useful for sharing the project with others or for deploying it to a server, but is in no way required for the site to function.
+
 ## See Also
 More resources.
 - [aws-cloudwatch-alarm-handler](https://github.com/eosnetworkfoundation/aws-cloudwatch-alarm-handler) lambda