init:Document force flag option for init command

website/content/docs/commands/init.mdx

@@ -7,7 +7,7 @@ page_title: packer init - Commands
 # `init` Command
 
 -> **Note:** Packer init does not work with legacy JSON templates. You can
-upgrade your JSON config files to HCL using the [hcl2_upgrade](/packer/docs/commands/hcl2_upgrade) command.
+upgrade your JSON template files to HCL using the [hcl2_upgrade](/packer/docs/commands/hcl2_upgrade) command.
 
 -> **Note:** Packer init will only work with multi-component plugins -- that is
 plugins that are named `packer-plugin-*`. To install a single-component plugin --
@@ -91,4 +91,8 @@ See [Installing Plugins](/packer/docs/plugins#installing-plugins) for more infor
 
 - `-upgrade` - On top of installing missing plugins, update installed plugins to
   the latest available version, if there is a new higher one. Note that this
-  still takes into consideration the version constraint of the config.
+  still takes into consideration the version constraint of the template.
+
+- `-force`   - Forces reinstallation of plugins, even if already installed. Note
+               that only the highest installed version matching the template version
+               constraint will be reinstalled, all other plugins will be left untouched.