Add open source dependencies

Author: czlucius

README.md

@@ -11,6 +11,19 @@ Do note that this project is protected by the GNU Affero General Public License
 # License
 This project is licensed with the GNU Affero General Public License. View [the license file](LICENSE.md) for more info.
 
+# Open-source dependencies
+
+This app uses the following open-source libraries:
+
+
+- ZXing: https://github.com/zxing/zxing - https://github.com/zxing/zxing/blob/master/LICENSE (Apache License 2.0)
+- ez-vcard: https://github.com/mangstadt/ez-vcard - https://github.com/mangstadt/ez-vcard/blob/master/LICENSE
+- LeakCanary(only in debug versions) - https://github.com/square/leakcanary - https://github.com/square/leakcanary/blob/main/LICENSE.txt (Apache License 2.0)
+- Moshi - https://github.com/square/moshi - https://github.com/square/moshi/blob/master/LICENSE.txt (Apache License 2.0)
+- AndroidPhotoshopColorPicker - https://github.com/aziztitu/AndroidPhotoshopColorPicker - https://github.com/aziztitu/AndroidPhotoshopColorPicker/blob/master/LICENSE (Artistic License 2.0)
+- Material Components - https://github.com/material-components/material-components-android - https://github.com/material-components/material-components-android/blob/master/LICENSE (Apache License 2.0)
+
+
 # Notes
 1.  Tag EXPM is used for experimental features.                       
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