message: docs: updating the example action to be valid typescript :)
diff: @@ -19,7 +19,7 @@ passed as `input` to the function.
  In `packages/backend/src/actions/custom.ts` we can create a new action.
  ```ts
  -import { createTemplateAction } from '../../createTemplateAction';
  +import { createTemplateAction } from '@backstage/plugin-scaffolder-backend';
  import fs from 'fs-extra';
  export const createNewFileAction = () => {
  @@ -35,7 +35,7 @@ export const createNewFileAction = () => {
  title: 'Contents',
  description: 'The contents of the file',
  },
  - contents: {
  + filename: {
  type: 'string',
  title: 'Filename',
  description: 'The filename of the file that will be created',
  @@ -46,7 +46,7 @@ export const createNewFileAction = () => {
  async handler(ctx) {
  await fs.outputFile(
  `${ctx.workspacePath}/${ctx.input.filename}`,
  - ctx.input.content,
  + ctx.input.contents,
  );
  },
  });
  