Update README.md

Author: Ashishkumbhar01

README.md

@@ -1,3 +1,10 @@
 # json-db
 JSON DB for APIs Testing and minimalist project
 
+## Installation
+
+```bash
+git clone https://github.com/codewithsushil/json-db.git
+cd json-db
+php -S localhost:8888
+curl http://localhost:8888