Updated README file

Author: fsoft72

README.md

@@ -15,5 +15,77 @@ The `diff` and `patch` functions are implemented in the following languages:
 
 And the `diffData` object can be used interchangeably between the languages.
 
+`diffData` can be serialized to JSON and deserialized back to an object. It aims to be as small as possible, and is designed to be used in a networked environment.
+
 More languages will be added in the future, contributions are welcome.
 
+## Usage
+
+### TypeScript
+
+```typescript
+import { diff, patch } from '@fsoft/diff-patch';
+
+const obj1 = {
+  a: 1,
+  b: 2,
+  c: {
+    d: 3,
+    e: 4,
+  },
+};
+
+const obj2 = {
+  a: 1,
+  b: 2,
+  c: {
+    d: 3,
+    e: 5,   // changed
+  },
+};
+
+// create the diff data
+const diffData = diff(obj1, obj2);
+
+// show the diff data for debugging
+console.log( "diffData: ", diffData);
+
+// apply the diff data to obj1 to get an object that is the same as obj2
+const obj3 = patch(obj1, diffData);
+```
+
+### Python3
+
+```python
+
+from diff_patch import diff, patch
+
+obj1 = {
+  'a': 1,
+  'b': 2,
+  'c': {
+    'd': 3,
+    'e': 4,
+  },
+}
+
+obj2 = {
+  'a': 1,
+  'b': 2,
+  'c': {
+    'd': 3,
+    'e': 5,   # changed
+  },
+}
+
+# create the diff data
+diff_data = diff(obj1, obj2)
+
+# show the diff data for debugging
+print("diff_data: ", diff_data)
+
+# apply the diff data to obj1 to get an object that is the same as obj2
+obj3 = patch(obj1, diff_data)
+```
+
+