docs: update readme with progress

Author: xBlaz3kx

README.md

@@ -9,14 +9,15 @@ getting and setting values, validating values, and enforcing mandatory keys.
 - Mandatory key enforcement
 - Custom value validation
 - Provides sane default values
+- Supports OCPP 1.6 and 2.0.1 (separate packages for each version)
 
 ## Roadmap
 
 - [x] Configuration versioning
 - [x] Custom value validation
 - [x] Mandatory key enforcement
 - [x] Support for OCPP 1.6
-- [ ] Support for OCPP 2.0.1
+- [x] Support for OCPP 2.0.1
 
 ## Installing
 
@@ -26,6 +27,8 @@ getting and setting values, validating values, and enforcing mandatory keys.
 
 ## ⚡ Usage
 
+### OCPP 1.6
+
 Check out the full [OCPP 1.6 example](examples/v16/example.go).
 
 ```go
@@ -92,6 +95,10 @@ func main() {
 
 ```
 
+### OCPP 2.0.1 
+
+TBD
+
 ## Notes
 
 1. This library is still in development, and the API might change in the future.