docs: add collections section (#301)

* docs: set up file for collections file

Signed-off-by: Christine <[email protected]>

* feat: add info

* fix: remove brackets

* feat: add section about encouraging user feedback

---------

Signed-off-by: Christine <[email protected]>

Author: CBID2

docs/key-features/collections.md

@@ -0,0 +1,29 @@
+---
+sidebar_position: 11
+---
+
+# Collections
+
+ Want to get the latest tech news and drama, but tired of sifting through countless posts? Well now you can through our collections feature! :)
+
+![image](https://github.com/dailydotdev/docs/assets/18360871/2663d24c-45bb-4bce-b676-6b3bb68efba6)
+
+## How are Collections formed?
+
+When our search engine detects two or more posts that talk about the same topic, they’re automatically grouped into one post/card. with a brief summary of the the topic.
+
+## Can I turn off the Collections in my feed?
+
+Sure! Just click the “more options” button on any collection card/post and select `Don't show posts from Collections`.
+
+## Can I see all Collections similar to all Community Picks?
+
+Of course! :)  Check our [feed exclusively for Collection posts](https://app.daily.dev/sources/collections).
+
+## Can I see all the Collections that I'm subscribed to?
+
+Currently, there’s no feature to view a list of Collections you’re subscribed to.
+
+## Help us think of more features
+
+Got more ideas on how to enhances Collections? Share your ideas [here](https://app.daily.dev/posts/M0nIoAHkd)! :) We're excited to see your suggestions! :)