Add descriptions for all the faps (#13)

.catalog/README.md

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+# NFC Magic
+
+This application allows you to check whether your NFC card is Magic, write data to Magic cards, and restore them to their original state.
+
+## What's a "Magic" Card?
+
+A Magic card is a card that allows you to change its UID. Generally, NFC cards have a UID pre-programmed at the factory, and it cannot be changed. However, some cards have a special backdoor feature that allows you to change the UID. These cards are called Magic cards.
+
+## Supported Cards
+
+Currently, not all Magic cards are supported. The following cards are supported:
+
+* Mifare Classic 1K/4K Gen1A/Gen1B (including OTP versions)
+* Ultimate Magic Card (Gen4 GTU)
+
+For the Gen4 cards, both the Ultralight and the Classic modes are supported, with the ability to select a custom password.
+
+The following cards are currently not supported:
+
+* Mifare Classic 1K/4K Gen2 (DirectWrite/CUID/FUID/UFUID)
+* Mifare Classic 1K/4K Gen3 (APDU)
+* Mifare Classic Magic Gen4 (GDM)
+* Supercard (Gen1 and Gen2)
+* Mifare Ultralight Gen1A/Gen1B (including OTP versions)
+* Mifare Ultralight DirectWrite
+* Mifare Ultralight EV1 DirectWrite
+* Mifare Ultralight C Gen1
+* Mifare Ultralight C DirectWrite
+* NTAG (all versions)
+* DESFire (all versions)
+* NFC-V/ISO15693 Magic Cards (all versions)