add app screenshots to readme (#158)

README.md

@@ -16,9 +16,23 @@ Wishlist is a self-hosted wishlist application that you can share with your frie
 -   [x] Invite users via email (SMTP configuration required)
 -   [x] Options for [suggestions](#suggestions)
 -   [x] PWA Support
--   [x] Group support
--   [x] Registry Mode
--   [ ] Draw names for a "secret santa" experience
+-   [x] Multiple groups
+-   [x] Registry Mode (single list)
+
+<p float="left">
+    <img src="./assets/homepage-desktop.png" width="74%" />
+    <img src="./assets/homepage-mobile.png" width="25%" />
+    Multiple groups for friends and family
+</p>
+
+<p float="left">
+    <img src="./assets/my-wishes-mobile.png" width="49%" />
+    <img src="./assets/wishes-mobile.png" width="49%" />
+    Add items to your list so other's can claim them
+</p>
+
+<img src="./assets/wish-form.png" />
+Create a wish from a URL, or manually fill in the details
 
 ## Getting Started
 
@@ -49,6 +63,12 @@ You can now connect to your application at `http://<host>:3280`.
 >
 > Set the `ORIGIN` environment variable to the url you will be connecting to, otherwise you will experience issues
 
+### Environment Variables
+
+`ORIGIN`: The URL your users will connect to e.g. `https://wishlist.domain.com`
+`TOKEN_TIME`: The amount of time (hours) that signup and password reset tokens are valid for
+`DEFAULT_CURRENCY`: The global default currency to be used. Currency can still be changed on a per-item basis
+
 ## Groups
 
 Wishlist has support for multiple wishlist groups. For example, you can have one group for friends and one for family. The wishes on these lists will be completely separate. You can switch between groups using the menu when you click on your profile picture.