Create Readme.md

README.md

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+# Statham is a Json Mapper (Deserializer)
+
+Main goal: "Make your own implementations to understand how it works"
+
+## How to use it
+Provide json string:
+```json
+{
+  "firstName": "Andrii",
+  "lastName": "Petrov",
+  "email": "apetrov@gmail.com",
+  "active": true,
+  "age": 19,
+  "address": {
+    "line1": "Kyiv", 
+    "line2": "Lesna"
+  }
+}
+```
+Pass json to Statham#jsonToObj method:
+```java
+User user = new Statham().jsonToObj(json, User.class);
+```
+
+### Limitations:
+As for now there are some limitations:
+* avoid using next characters inside json string key or value: `,":{}[]` 
+* class should have default constuctor (but I guess you can implement you own Hydrator to handle that)