updated readme

Author: Dipak Sarkar

README.md

@@ -1,3 +1,4 @@
+[![codecov](https://codecov.io/gh/coders-tm/vue-number-format/branch/master/graph/badge.svg?token=OML1CQSPLA)](https://codecov.io/gh/coders-tm/vue-number-format)
 [![npm Version](https://badgen.net/npm/v/@coders-tm/vue-number-format?color=green)](https://www.npmjs.com/package/@coders-tm/vue-number-format)
 [![npm Downloads](https://badgen.net/npm/dt/@coders-tm/vue-number-format?color=green)](https://www.npmjs.com/package/@coders-tm/vue-number-format)
 [![Bundlephobia](https://badgen.net/bundlephobia/minzip/@coders-tm/vue-number-format?color=green)](https://bundlephobia.com/result?p=@coders-tm/vue-number-format)

codecov.yml

@@ -1,4 +1,16 @@
+# For more configuration details:
+# https://docs.codecov.io/docs/codecov-yaml
+
+# Check if this file is valid by running in bash:
+# curl -X POST --data-binary @.codecov.yml https://codecov.io/validate
+
+# Coverage configuration
+# ----------------------
 coverage:
-  range: 70..100
-  round: down
-  precision: 2
+  status:
+    patch: false
+
+  range: 70..90     # First number represents red, and second represents green
+                    # (default is 70..100)
+  round: down       # up, down, or nearest
+  precision: 2      # Number of decimal places, between 0 and 5