message: Update docs for techdocs runCommand
diff: @@ -18,7 +18,7 @@ import { isChildPath } from '@backstage/backend-common';
  import { Entity } from '@backstage/catalog-model';
  import { assertError, ForwardedError } from '@backstage/errors';
  import { ScmIntegrationRegistry } from '@backstage/integration';
  -import { spawn } from 'child_process';
  +import { SpawnOptionsWithoutStdio, spawn } from 'child_process';
  import fs from 'fs-extra';
  import gitUrlParse from 'git-url-parse';
  import yaml, { DEFAULT_SCHEMA, Type } from 'js-yaml';
  @@ -39,19 +39,18 @@ export function getGeneratorKey(entity: Entity): SupportedGeneratorKey {
  }
  export type RunCommandOptions = {
  + /** command to run */
  command: string;
  + /** arguments to pass the command */
  args: string[];
  - options: object;
  + /** options to pass to spawn */
  + options: SpawnOptionsWithoutStdio;
  + /** stream to capture stdout and stderr output */
  logStream?: Writable;
  };
  /**
  - *
  - * @param options the options object
  - * @param options.command the command to run
  - * @param options.args the arguments to pass the command
  - * @param options.options options used in spawn
  - * @param options.logStream the log streamer to capture log messages
  + * Run a command in a sub-process, normally a shell command.
  */
  export const runCommand = async ({
  command,
  