refactor: 🚚 Make paths under /entities use the singular form

app/entities/unfollow/page.mdx

@@ -0,0 +1,57 @@
+export const metadata = {
+    title: 'Unfollow',
+    description: 'The Unfollow entity allows users to unsubscribe from each other',
+}
+
+# Unfollow
+
+Sometimes, [Users](/entities/user) want to unsubscribe from each other to stop seeing each other's content. The `Unfollow` defines such a change. {{ className: 'lead' }}
+
+<Note>
+    Refer to the [Follow](/entities/follow) entity for information on how follow relationships work.
+</Note>
+
+<Note>
+    This is **not** used to remove a follower from a followee.
+
+    For example, if Bob follows Alice, this entity is used when:
+    - Bob wants to stop following Alice.
+
+    **NOT** when:
+    
+    - Alice wants to remove Bob as a follower.
+
+    For the latter, use [FollowReject](/entities/follow-reject).
+</Note>
+
+## Entity Definition
+
+<Row>
+    <Col>
+        <Properties>
+            <Property name="uri" type="null" required={false}>
+                This entity does not have a URI.
+            </Property>
+            <Property name="author" type="URI" required={true} typeLink="/types#uri">
+                URI of the `User` considered the 'follower', i.e. the user who is unsubscribing from the followee.
+            </Property>
+            <Property name="followee" type="URI" required={true} typeLink="/types#uri">
+                URI of the `User` considered the 'followee', i.e. the user who is being unsubscribed from.
+            </Property>
+        </Properties>
+    </Col>
+
+    <Col sticky>
+
+    ```jsonc {{ title: 'Example Unfollow' }}
+    {
+        "type": "Unfollow",
+        "id": "3e7e4750-afd4-4d99-a256-02f0710a0520",
+        "author": "https://example.com/users/6e0204a2-746c-4972-8602-c4f37fc63bbe",
+        "created_at": "2021-01-01T00:00:00.000Z",
+        "followee": "https://example.com/users/02e1e3b2-cb1f-4e4a-b82e-98866bee5de7"
+    }
+    ```
+
+    </Col>
+</Row>