Merge pull request #2403 from micalevisk/master

 docs: add nestjs cli change on migration guide & docs on `--strict`

Author: kamilmysliwiec

content/cli/usages.md

@@ -34,6 +34,7 @@ Creates and initializes a new Nest project. Prompts for package manager.
 | `--package-manager [package-manager]` | Specify package manager. Use `npm`, `yarn`, or `pnpm`. Package manager must be installed globally.<br/> Alias: `-p` |
 | `--language [language]`               | Specify programming language (`TS` or `JS`).<br/> Alias: `-l`                                                       |
 | `--collection [collectionName]`       | Specify schematics collection. Use package name of installed npm package containing schematic.<br/> Alias: `-c`     |
+| `--strict`                            | Start the project with the following TypeScript compiler flags enalbed: `strictNullChecks`, `noImplicitAny`, `strictBindCallApply`, `forceConsistentCasingInFileNames`, `noFallthroughCasesInSwitch` |
 
 #### nest generate
 

content/first-steps.md

@@ -21,6 +21,8 @@ $ npm i -g @nestjs/cli
 $ nest new project-name
 ```
 
+> info **Hint** To create a new project with TypeScript's [strict](https://www.typescriptlang.org/tsconfig#strict) mode enabled, pass the `--strict` flag to the `nest new` command. 
+
 The `project-name` directory will be created, node modules and a few other boilerplate files will be installed, and a `src/` directory will be created and populated with several core files.
 
 <div class="file-tree">

content/introduction.md

@@ -23,6 +23,8 @@ $ npm i -g @nestjs/cli
 $ nest new project-name
 ```
 
+> info **Hint** To create a new project with TypeScript's [strict](https://www.typescriptlang.org/tsconfig#strict) mode enabled, pass the `--strict` flag to the `nest new` command. 
+
 #### Alternatives
 
 Alternatively, to install the TypeScript starter project with **Git**:

content/migration.md

@@ -94,3 +94,8 @@ All deprecated methods & modules have been removed (e.g., the deprecated `listen
 #### Node.js
 
 This release drops support for Node v10. We strongly recommend using the latest LTS version.
+
+#### CLI
+
+Due to stability issues, the command `update` was removed in the v9 of `@nestjs/cli`.  
+You can use dedicated tools like [`ncu`](https://www.npmjs.com/package/npm-check-updates), `npm update`, [`yarn upgrade-interactive`](https://classic.yarnpkg.com/en/docs/cli/upgrade-interactive), etc., if you want to upgrade your dependencies.