docs(misc): update imports to @nrwl/workspace generators to avoid req…

…uiring @angular-devkit/schematics (#10554)

docs/shared/generators/composing-generators.md

@@ -7,7 +7,7 @@ Generators are useful individually, but reusing and composing generators allows
 Nx Devkit generators can be imported and invoked like any javascript function. They often return a `Promise`, so they can be used with the `await` keyword to mimic synchronous code. Because this is standard javascript, control flow logic can be adjusted with `if` blocks and `for` loops as usual.
 
 ```typescript
-import { libraryGenerator } from '@nrwl/workspace';
+import { libraryGenerator } from '@nrwl/workspace/generators';
 
 export default async function (tree: Tree, schema: any) {
   await libraryGenerator(

docs/shared/generators/creating-files.md

@@ -41,7 +41,7 @@ import {
   joinPathFragments,
   readProjectConfiguration,
 } from '@nrwl/devkit';
-import { libraryGenerator } from '@nrwl/workspace';
+import { libraryGenerator } from '@nrwl/workspace/generators';
 
 export default async function (tree: Tree, schema: any) {
   await libraryGenerator(tree, { name: schema.name });

docs/shared/generators/generator-options.md

@@ -15,7 +15,7 @@ Import the TypeScript schema into your generator file and replace the any in you
 
 ```typescript
 import { Tree, formatFiles, installPackagesTask } from '@nrwl/devkit';
-import { libraryGenerator } from '@nrwl/workspace';
+import { libraryGenerator } from '@nrwl/workspace/generators';
 
 export default async function (tree: Tree, schema: GeneratorOptions) {
   await libraryGenerator(tree, { name: `${schema.name}-${schema.type || ''}` });

docs/shared/generators/workspace-generators.md

@@ -35,7 +35,7 @@ The initial generator function creates a library.
 
 ```typescript
 import { Tree, formatFiles, installPackagesTask } from '@nrwl/devkit';
-import { libraryGenerator } from '@nrwl/workspace';
+import { libraryGenerator } from '@nrwl/workspace/generators';
 
 export default async function (tree: Tree, schema: any) {
   await libraryGenerator(tree, { name: schema.name });