Create README.md

codemods/redwoodjs/core/4/auth-decoder/README.md

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+# Auth Decoder
+
+## Description
+
+This codemod for RedwoodJS v4 automatically inserts an `authDecoder` property into the `createGraphQLHandler` call if it's not already present. It also adds an import statement for `authDecoder` from `@redwoodjs/auth-auth0-api` at the beginning of the file, ensuring that the necessary functionality for authentication is correctly integrated.
+
+## Example
+
+### Before
+
+```TypeScript
+import { createGraphQLHandler } from '@redwoodjs/graphql-server';
+
+import directives from 'src/directives/**/*.{js,ts}';
+import sdls from 'src/graphql/**/*.sdl.{js,ts}';
+import services from 'src/services/**/*.{js,ts}';
+
+import { db } from 'src/lib/db';
+import { logger } from 'src/lib/logger';
+
+export const handler = createGraphQLHandler({
+  loggerConfig: { logger, options: {} },
+  directives,
+  sdls,
+  services,
+  onException: () => {
+    // Disconnect from your database with an unhandled exception.
+    db.$disconnect();
+  },
+});
+```
+
+### After
+
+```TypeScript
+import { authDecoder } from '@redwoodjs/auth-auth0-api';
+import { createGraphQLHandler } from '@redwoodjs/graphql-server';
+
+import directives from 'src/directives/**/*.{js,ts}';
+import sdls from 'src/graphql/**/*.sdl.{js,ts}';
+import services from 'src/services/**/*.{js,ts}';
+
+import { db } from 'src/lib/db';
+import { logger } from 'src/lib/logger';
+
+export const handler = createGraphQLHandler({
+  authDecoder: authDecoder,
+  loggerConfig: { logger, options: {} },
+  directives,
+  sdls,
+  services,
+
+  onException: () => {
+    // Disconnect from your database with an unhandled exception.
+    db.$disconnect();
+  }
+});
+```
+
+## Applicability Criteria
+
+RedwoodJS < v4.0.0
+
+## Other Metadata
+
+### Codemod Version
+
+v1.0.0
+
+### Change Mode
+
+**Assistive**: The automation partially completes changes. Human involvement is needed to make changes ready to be pushed and merged.
+
+### **Codemod Engine**
+
+[jscodeshift](https://github.com/facebook/jscodeshift)
+
+### Estimated Time Saving
+
+~5 minutes per occurrence
+
+### Owner
+
+[Rajasegar Chandran](https://github.com/rajasegar)