docs: add readme for docs directory

Add README.md inside docs directory to provide TOC.

Author: swashata

docs/README.md

@@ -0,0 +1,15 @@
+# eslint-config-wordpress documentation
+
+> Documentation for using ESLint with `wordpress` config.
+
+## 1: Setup ESLint with your Project
+
+Guides on installing ESLint and configure to use `wordpress` Coding Standards.
+
+* [Local ESLint Setup with `wordpress` config](00-eslint-cli-setup.md).
+
+## 2: Editor Integration
+
+Integrate ESLint directly within your favorite text editor.
+
+* [VSCode integration with ESLint Extension](01-vscode-setup.md).