docs: added README.md

Author: sashafromlibertalia

README.md

@@ -0,0 +1,23 @@
+## Installation
+
+```bash
+npm i -D @websect/eslint-config eslint
+```
+
+## Usage
+
+### JS
+Inside your `eslint` configuration file add following line
+```json
+{
+    "extends": ["@websect/eslint-config"]
+}
+```
+
+### TS
+For Typescript add following line instead of previous one
+```json
+{
+    "extends": ["@websect/eslint-config/ts"]
+}
+```