Updated clarification for Mailbox.org on mobile issue #48

CONTRIBUTORS.md

@@ -15,6 +15,7 @@ GitHub:
 - [@ribtoks](https://github.com/ribtoks)
 - [@PopeRigby](https://github.com/PopeRigby)
 - [@brandonnodnarb](https://github.com/brandonnodnarb)
+- [@avasts](https://github.com/avasts)
 
 Reddit:
 

README.md

@@ -280,7 +280,7 @@ When searching for replacements, check the alternative stores (such as F-Droid)
   - [Protonmail](https://protonmail.com/support/knowledge-base/android/) - Can be downloaded from the Play Store, but may work with one of the store replacements above (such as Yalp).
   - [Tutanota](https://f-droid.org/en/packages/de.tutao.tutanota/) - Client available from F-Droid.
   - Posteo - Any open-source mail client. I use [K-9 Mail](https://k9mail.github.io/) and have previously used [FairEmail](https://email.faircode.eu/). Both are available on F-Droid.
-  - Mailbox.org - *Help requested*
+  - Mailbox.org - Mailbox.org provides IMAP settings for Android/iOS and an iOS profile. Thanks @avasts Issue #45
   - [Disroot](https://f-droid.org/en/packages/org.disroot.disrootapp/) - Available from F-Droid.
 - Keep (or any stock note-taking app)
   - [Notepad](https://github.com/farmerbb/Notepad) - Open-source and available from F-Droid. Supports Markdown and HTML. Very clean and feature-rich. *Offline only*.