Updated README.md

Signed-off-by: Ko Nagase <[email protected]>

Author: sanak

README.md

@@ -57,14 +57,6 @@ After restarting Redmine, you should be able to see the Redmine GTT plugin in th
 
 More information on installing (and uninstalling) Redmine plugins can be found here: http://www.redmine.org/wiki/redmine/Plugins
 
-## How to run test
-
-After the installation, you can run the plugin test by the following command:
-
-```
-RAILS_ENV=test NAME=redmine_gtt bundle exec rake redmine:plugins:test
-```
-
 ## How to use
 
 1. Go to plugin configuration for global settings
@@ -79,6 +71,25 @@ For more information with screenshots see the [Getting Started](doc/getting-star
 
 The GTT Project appreciates any [contributions](https://github.com/gtt-project/.github/blob/main/CONTRIBUTING.md)! Feel free to contact us for [reporting problems and support](https://github.com/gtt-project/.github/blob/main/CONTRIBUTING.md).
 
+### How to debug frontend
+
+You can debug frontend by running the following command on another console:
+
+```
+npx webpack --watch --mode=development
+```
+
+### How to run test
+
+You can run the plugin test on rails test environment by the following command:
+
+```
+bundle exec rake db:create
+RAILS_ENV=test bundle exec rake db:migrate
+RAILS_ENV=test bundle exec rake redmine:plugins:migrate
+RAILS_ENV=test NAME=redmine_gtt bundle exec rake redmine:plugins:test
+```
+
 ## Version History
 
 See [all releases](https://github.com/gtt-project/redmine_gtt/releases) with release notes.
@@ -89,6 +100,7 @@ See [all releases](https://github.com/gtt-project/redmine_gtt/releases) with rel
 - [Daniel Kastl](https://github.com/dkastl)
 - [Thibault Mutabazi](https://github.com/eyewritecode)
 - [Ko Nagase](https://github.com/sanak)
+- [Taro Matsuzawa](https://github.com/smellman)
 - ... [and others](https://github.com/gtt-project/redmine_gtt/graphs/contributors)
 
 ## LICENSE