message: docs: fix `schematicCollections` option
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diff: @@ -58,7 +58,7 @@ The following configuration properties are a set of options that customize the A
  | `analytics` | Share anonymous [usage data](cli/usage-analytics-gathering) with the Angular Team. | `boolean` &verbar; `ci` |
  | `analyticsSharing` | A set of analytics sharing options. | [Analytics sharing options](#analytics-sharing-options) |
  | `cache` | Control [persistent disk cache](cli/cache) used by [Angular CLI Builders](guide/cli-builder). | [Cache options](#cache-options) |
  -| `schematicCollection` | A list of default schematics collection to use. | `string` |
  +| `schematicCollections`| A list of default schematics collections to use. | `string[]` |
  | `packageManager` | The preferred package manager tool to use. | `npm` &verbar; `cnpm` &verbar; `pnpm` &verbar;`yarn` |
  | `warnings` | Control CLI specific console warnings. | [Warnings options](#warnings-options) |
  