docs: update and fix typo in some documents

docs/install-local-documentation.md

@@ -0,0 +1,17 @@
+# Manage local documentation
+
+Documents from Vutron can be viewed in the local environment through the VitePress viewer.
+
+Since VitePress and related plugin packages are configured to be selectively installed, they cannot be installed with `npm i`.
+
+Install the relevant packages using the following preconfigured script commands:
+
+```shell
+$ npm run docs:install
+```
+
+You can run the local server where the documents are hosted via the command below.
+
+```shell
+$ npm run docs:dev
+```