Updated README

Updated README with screenshot and checked off a few of the TODOs (not that it's anywhere near complete)

README.md

@@ -1,5 +1,7 @@
 # City Limits
 
+![Screenshot](screenshot.png)
+
 A city building game based on Godot using the Micropolis assets (initially).
 
 ## Getting Started
@@ -10,7 +12,7 @@ A city building game based on Godot using the Micropolis assets (initially).
 
 ## Authors
 
-- **Tony bark** - _Initial work_ - [tonytins](https://github.com/tonytins)
+- **Tony Bark** - _Initial work_ - [tonytins](https://github.com/tonytins)
 - **Maxis** - _Assets_ - [SimHacker](https://github.com/SimHacker/)
 
 See also the list of [contributors](https://github.com/tonytins/citylimits/contributors) who participated in this project.
@@ -19,9 +21,9 @@ See also the list of [contributors](https://github.com/tonytins/citylimits/contr
 
 With the exception of the world generator, this isn't any real order.
 
-- [ ] Map generator
-- [ ] Currency
-- [ ] Mayor mode
+- [x] Map generator
+- [x] Currency
+- [x] Mayor mode
 - [ ] Save & load maps
 
 Note: this is subject to change in the future.