Pontoon: Update Croatian (hr) localization of AMO

Co-authored-by: Milo <mail@milotype.de>

locale/hr/LC_MESSAGES/django.po

@@ -7,7 +7,7 @@ msgstr ""
 "Project-Id-Version: addons VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
 "POT-Creation-Date: 2020-08-04 16:26+0000\n"
-"PO-Revision-Date: 2020-08-04 17:05+0000\n"
+"PO-Revision-Date: 2020-08-04 17:13+0000\n"
 "Last-Translator: Milo <mail@milotype.de>\n"
 "Language-Team: Croatian\n"
 "Language: hr\n"
@@ -3293,7 +3293,7 @@ msgid "Ready to submit or manage your extension?"
 msgstr "Želiš poslati tvoje proširenje i njime upravljati?"
 
 msgid "Sign in to the Developer Hub to submit or manage extensions and themes."
-msgstr ""
+msgstr "Za slanje i upravljanje proširenjima i motivima, prijavi se na Centar za programere."
 
 msgid "Register for a developer account or log in to the Developer Hub"
 msgstr ""