Created admin panels and made changes to its list view.

Updated README.

README.txt

 Jiuvi Anne Marie Chrystine D. Hu
 202539
 BS CS E
-Lab 02: Song Library v@
-February 20, 2023
+Lab 02: Song Library v2
+February 21, 2023
 
 This lab was truthfully done by me.
-<sgd> Jiuvi Anne Marie Chrystine D. Hu, February 20, 2023
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+<sgd> Jiuvi Anne Marie Chrystine D. Hu, February 21, 2023
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about/admin.py

 from django.contrib import admin
 
+from .models import Artist, Album, Song
+
+class ArtistAdmin(admin.ModelAdmin):
+    model = Artist
+    list_display = ('artist_name', 'birth_name', 'monthly_listeners',)
+    search_fields = ('artist_name', 'birth_name',)
+    list_filter = ('artist_name', 'birth_name',)
+
+class AlbumAdmin(admin.ModelAdmin):
+    model = Album
+    list_display = ('album_name', 'description' , 'release_date', 'label', 'song_count',)
+    search_fields = ('album_name', 'description', 'label',)
+    list_filter = ('album_name',)
+
+class SongAdmin(admin.ModelAdmin):
+    model = Song
+    list_display = ('song_title', 'song_length', 'music_video',)
+    search_fields = ('album',)
+    list_filter = ('song_title',)
+
 # Register your models here.
+admin.site.register(Artist, ArtistAdmin)
+admin.site.register(Album, AlbumAdmin)
+admin.site.register(Song, SongAdmin)
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