choreedit-readme):add content inthe readme file

README.md

@@ -3,3 +3,46 @@
 [![Coverage Status](https://coveralls.io/repos/github/swaibat/eagle-validator/badge.svg?branch=master)](https://coveralls.io/github/swaibat/eagle-validator?branch=master)
 
 A modern javascript object validation node package available on npmjs.com
+
+Basic usage
+------------
+a simple middleware for you
+```
+import Check from 'eagle-validator';
+
+export default function validator(req, res, next) {
+  const valid = [
+    new Check({ firstName: req }).str().req().min(2).max(20).alpha(),
+    new Check({ phoneNumber: req }).str().req().min(2).num(),
+    new Check({ email: req }).str().req().email(),
+  ];
+  const invalid = valid.find((e) => e.error);
+  if (invalid) return sendResult(res, 400, invalid.error);
+  return next();
+}
+```
+this will return simplified messages like:
+
+####for required field
+
+```firstName  field is required```
+```firstName should be a string```
+```firstName should be greaterthan 2```
+```firstName should be lessthan 19```
+```firstName should be alphabetic```
+
+Basic abbrevations used
+------------
+
+| abbrevations    | meaning                   | example           |
+| --------------  |:-------------------------:| -----------------:|
+| str()           | string                    | 'hello'           |
+| req()           | required                  | 'world'           |
+| min()           | minimum characters        |  any              |
+| max(3)          | miximum characters        |  any              |
+| number()        | should be a number        |  1-9              |
+| num()           | only numbers in a string  | `0-9`             |
+| alpha()         | should ba alphabets only  | `A-Z,a-z`         |
+| alphaNum()      | mixture of alpha & nums   | `A-Z,a-z,0-9`     |
+| bool()          | should be a boolean       | `true`            |
+| email()         | stictly email address     | `rswaib@gmail.com`|