documentation, admin section, plus fix of a typo on models (#293)

* documentation, admin section, plus fix of a typo on models

files/migrations/0003_auto_20210927_1245.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.1.12 on 2021-09-27 11:45
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('files', '0002_auto_20201201_0712'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='media',
+            name='reported_times',
+            field=models.IntegerField(default=0, help_text='how many time a media is reported'),
+        ),
+    ]