move phoneScreenshots to images folder

Signed-off-by: Marcel Hibbe <dev@mhibbe.de>

README.md

@@ -17,7 +17,7 @@ Please note that Notifications won't work with the F-Droid version due to missin
 
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-|![Conversation list](/fastlane/metadata/android/en-US/phoneScreenshots/conversationList_light.png "Conversation list")|![Participant search](/fastlane/metadata/android/en-US/phoneScreenshots/searchParticipant_light.png "Participant search")|![Voice call](/fastlane/metadata/android/en-US/phoneScreenshots/voiceCall.png "Voice call")|![Voice recording](/fastlane/metadata/android/en-US/phoneScreenshots/voiceRecord_light.png "Voice recording")|![Markdown view](/fastlane/metadata/android/en-US/phoneScreenshots/markdown_light.png "Markdown view")|![Settings](/fastlane/metadata/android/en-US/phoneScreenshots/settings_light.png "Settings")|
+|![Conversation list](/fastlane/metadata/android/en-US/images/phoneScreenshots/conversationList_light.png "Conversation list")|![Participant search](/fastlane/metadata/android/en-US/images/phoneScreenshots/searchParticipant_light.png "Participant search")|![Voice call](/fastlane/metadata/android/en-US/images/phoneScreenshots/voiceCall.png "Voice call")|![Voice recording](/fastlane/metadata/android/en-US/images/phoneScreenshots/voiceRecord_light.png "Voice recording")|![Markdown view](/fastlane/metadata/android/en-US/images/phoneScreenshots/markdown_light.png "Markdown view")|![Settings](/fastlane/metadata/android/en-US/images/phoneScreenshots/settings_light.png "Settings")|
 
 **Video & audio calls through Nextcloud on Android**