diff --git a/README.md b/README.md
index afad1b0..5632728 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,13 @@
 # BigDecimal
 a polyfill for decimal propocal - https://github.com/tc39/proposal-decimal
+It is implemented on the top of native BigInt.
+It can be compiled using https://www.npmjs.com/package/babel-plugin-transform-bigint to use JSBI.
 
 # Usage:
 
+## Installation:
+`npm install @yaffle/bigdecimal`
+
 ## Type conversion:
 
 `BigDecimal.BigDecimal(string)`
@@ -54,6 +59,17 @@ a polyfill for decimal propocal - https://github.com/tc39/proposal-decimal
 
 The `rounding` argument may look like `{maximumFractionDigits: 10, roundingMode: "half-even"}` or `{maximumSignificantDigits: 10, roundingMode: "half-even"}`, where the roundingMode can be "floor", or "ceil", or "half-even", or "half-up".
 
+## Example:
+```javascript
+
+import BigDecimal from './node_modules/@yaffle/bigdecimal/BigDecimal.js';
+
+var pi = BigDecimal.multiply(BigDecimal.BigDecimal(4), BigDecimal.atan(BigDecimal.BigDecimal(1), {maximumSignificantDigits: 1000, roundingMode: 'half-even'}));
+
+console.log(pi.toString());
+
+```
+
 # Similar projects:
 1. https://github.com/MikeMcl/decimal.js/
 2. https://github.com/uzyn/bigdenary
diff --git a/package.json b/package.json
index 4ffdc78..292f8ee 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@yaffle/bigdecimal",
-  "version": "1.0.0",
+  "version": "1.0.2",
   "description": "Arbitrary precision decimal arithmetic library. Polyfill for decimal proposal. Implemented on the top of BigInt.",
   "main": "BigDecimal.js",
   "scripts": {
@@ -17,10 +17,14 @@
     "arithmetic",
     "bigdecimal"
   ],
+  "files": [
+    "BigDecimal.js"
+  ],
   "author": "Viktor Mukhachev",
   "license": "ISC",
   "bugs": {
     "url": "https://github.com/Yaffle/BigDecimal/issues"
   },
-  "homepage": "https://github.com/Yaffle/BigDecimal#readme"
+  "homepage": "https://github.com/Yaffle/BigDecimal#readme",
+  "type": "module"
 }