Add notes about translations

README.md

@@ -42,6 +42,11 @@ There are several ways to contact us:
 Contributions are welcome. Follow the
 [guidelines](doc/contributions/introduction.md) before posting any patches.
 
+## Translations
+
+Translations are maintained within the [Translation Project](https://translationproject.org/html/welcome.html).  For further
+information, see [here](doc/contributions/translation.md).
+
 ## Authors and maintainers
 Authors and maintainers are listed in [AUTHORS.md](
 https://github.com/shadow-maint/shadow/blob/master/AUTHORS.md).

doc/contributions/translation.md

@@ -0,0 +1,13 @@
+# Translation
+
+The translations for the shadow project are maintained at the Translation
+Project (TP), both [user interface](https://translationproject.org/domain/shadow.html)
+and [man pages](https://translationproject.org/domain/shadow-man.html).
+
+To be able to send new or updated `.po` files to the TP Robot, you need to be
+a member of a [team](https://translationproject.org/team/index.html). 
+
+Please note that translations are handled exclusively through the Translation
+Project.  Unless a translation for a specific language is marked as "external"
+under "Assigned translator" there, translations submitted outside the TP (for
+example, via an issue ticket or a pull request) unfortunately cannot be accepted.