Rename button at manifest import form

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/views/import/manifest/_form.html.haml

@@ -18,5 +18,5 @@
       = _('Choose the top-level group for your repository imports.')
 
   .append-bottom-10
-    = submit_tag 'Continue to the next step', class: 'btn btn-success'
+    = submit_tag 'List available repositories', class: 'btn btn-success'
     = link_to 'Cancel', new_project_path, class: 'btn btn-cancel'

doc/user/project/import/manifest.md

@@ -10,7 +10,7 @@ You can do it by following next steps:
 1. Click on the **Manifest file** button
 1. Provide GitLab with a manifest xml file
 1. Select a group you want to import to (you need to create a group first if you don't have one)
-1. Click **Continue to the next step** 
+1. Click **List available repositories** 
 1. You will be redirected to the import status page with projects list based on manifest file
 1. Check the list and click 'Import all repositories' to start import.
 

spec/features/import/manifest_import_spec.rb

@@ -16,7 +16,7 @@ feature 'Import multiple repositories by uploading a manifest file', :js, :postg
     visit new_import_manifest_path
 
     attach_file('manifest', Rails.root.join('spec/fixtures/aosp_manifest.xml'))
-    click_on 'Continue to the next step'
+    click_on 'List available repositories'
 
     expect(page).to have_button('Import all repositories')
     expect(page).to have_content('https://android-review.googlesource.com/platform/build/blueprint')
@@ -26,7 +26,7 @@ feature 'Import multiple repositories by uploading a manifest file', :js, :postg
     visit new_import_manifest_path
 
     attach_file('manifest', Rails.root.join('spec/fixtures/aosp_manifest.xml'))
-    click_on 'Continue to the next step'
+    click_on 'List available repositories'
 
     page.within(first_row) do
       click_on 'Import'