Update README.md

README.md

@@ -8,4 +8,18 @@ To run this application, simply execute:
 
 ```shell
 gradlew run
-```
+```
+
+## Public API
+
+After running the application, the public instance is available at http://localhost:7000
+As for now, it offers the following endpoints:
+* `GET /blocks` for listing all existing blocks in the chain
+* `POST /blocks/mine` for mining new block
+
+## Credit
+
+This project uses some open source libraries:
+* [Apache Commons Codec](https://github.com/apache/commons-codec)
+* [JavaLin](https://javalin.io/)
+* [Jackson Module Kotlin](https://github.com/FasterXML/jackson-module-kotlin)