rails-console: add page (#15608)

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>
Co-authored-by: Wiktor Perskawiec <git@spageektti.cc>

pages/common/rails-console.md

@@ -0,0 +1,20 @@
+# rails console
+
+> Interact with a Rails application.
+> More information: <https://guides.rubyonrails.org/command_line.html#bin-rails-console>.
+
+- Start the Rails console:
+
+`rails console`
+
+- Start the Rails console and roll back all data modifications on exit:
+
+`rails console --sandbox`
+
+- Start the Rails console on a specified environment:
+
+`rails console --environment {{dev|test|production|...}}`
+
+- Display help:
+
+`rails console --help`