GitHubSyncApi.md in phrase-2.8.7

- old
+ new

@@ -13,11 +13,11 @@
 
 > github_sync_export(github_sync_export_parameters, opts)
 
 Export from Phrase Strings to GitHub
 
-Export translations from Phrase Strings to GitHub according to the .phraseapp.yml file within the GitHub repository.
+Export translations from Phrase Strings to GitHub according to the .phraseapp.yml file within the GitHub repository. <br><br><i>Note: Export is done asynchronously and may take several seconds depending on the project size.</i>
 
 ### Example
 
 ```ruby
 # load the gem
@@ -73,10 +73,10 @@
 
 > github_sync_import(github_sync_import_parameters, opts)
 
 Import to Phrase Strings from GitHub
 
-Import files to Phrase Strings from your connected GitHub repository.
+Import files to Phrase Strings from your connected GitHub repository. <br><br><i>Note: Import is done asynchronously and may take several seconds depending on the project size.</i>
 
 ### Example
 
 ```ruby
 # load the gem