Merge pull request DjangoGirls#648 from agagata/master

Add info about crowdin to README.md

Author: patjouk

README.md

@@ -1,6 +1,6 @@
 # Django Girls Tutorial
 
-This is the source code repository for the Django Girls Tutorial. Django Girls Tutorial is used on [tutorial.djangogirls.org](http://tutorial.djangogirls.org) so if you want to read it, please go there. If you want to contribute please do go further with this file. 
+This is the source code repository for the Django Girls Tutorial. Django Girls Tutorial is used on [tutorial.djangogirls.org](http://tutorial.djangogirls.org) so if you want to read it, please go there. If you want to contribute please do go further with this file.
 
 
 # How to contribute
@@ -17,6 +17,8 @@ The tutorial is written in [Markdown mark up language](https://help.github.com/a
 
 You can find any discussions about the contents of the tutorial on the [Github issue tracker](https://github.com/DjangoGirls/tutorial/issues).
 
+[Crowdin](https://crowdin.com/project/django-girls-tutorial) platform is used to manage translations. If you want to join an existing translation team or launch a new translation, send an email to the [translation managers](mailto:[email protected]) or contact [support team](mailto:[email protected]). If you want to propose some small changes or fix typos in existing translations, please create a Pull Request.
+
 # Getting started and prerequisites
 
 For contributing to the tutorial the following is needed to get started:
@@ -94,7 +96,7 @@ Example:
     Total 5 (delta 1), reused 0 (delta 0)
     To [email protected]:miohtama/tutorial.git
        b37ca59..fe36152  contributing -> contributing
-       
+
 If you don't want to download the Gitbook Editor app you can also go to the [Gitbook website](http://gitbook.com), sign up for free and work directly in your browser.
 
 # Making a pull request
@@ -116,4 +118,3 @@ Github emails will notify you for the follow up process.
 GitHub has an excellent [documentation](https://help.github.com/). Check it out if you need help!
 
 For further questions please [contact DjangoGirls](http://djangogirls.org/).
-