Merge pull request #3 from explore-node-js/eugene-matvejev-patch-1

update README.md

Author: eugene-matvejev

README.md

@@ -1,2 +1,17 @@
 # node.js-object-field-resolver
 allows overwrite object fields with value
+
+
+how to use:
+
+```
+import overwriteObjectField from "node-object-field-resolver"
+
+...
+let object = {xxx: 'value'}
+
+object = overwriteObjectField('xxx.yyy', object, 'new value', '.');
+
+object // {xxx: { yyy: 'new value'} }
+
+```