doc: added kcl mod update documentation

Signed-off-by: Abhishek Kumar <[email protected]>

docs/tools/cli/package-management/command-reference/11.update.md

@@ -0,0 +1,36 @@
+# kcl mod update
+
+Update kcl module dependencies.
+
+## Usage
+
+```shell
+kcl mod update [options][module_name]
+```
+
+## Description
+
+`kcl mod update` will update the dependencies listed in kcl.mod.lock based on kcl.mod.
+
+You can also update a package by specifying the path of that package.
+
+
+## Options
+
+### --help, -h
+
+Show help for `kcl mod update` command.
+
+## Examples
+
+### Update the current module
+
+```shell
+kcl mod update
+```
+
+### Update the module with the specified path
+
+```shell
+kcl mod update path/to/package
+```