Docs/prompts library (#34)

* chore: add prompts library feature docs

* refine text some more

content/1.features/prompts-library.md

@@ -0,0 +1,33 @@
+---
+title: Prompts Library
+description: Create a library of Quick Prompts that you can use throughout Msty
+navTruncate: false
+---
+
+The Prompts Library acts as a collection of Quick Prompts that you can use throughout Msty. You can create, edit, and delete prompts as needed.
+
+When you need to add a prompt, such as when adding system or user prompts to a chat, you can quickly select a prompt from the library using the Quick Prompts button.
+
+### Managing Prompts Library
+
+You can access the **Prompts Library** from the sidebar menu.
+
+From here, you can create and edit your own custom prompts.
+
+If you'd like to install Msty's default prompts, that cover a wide range of use-cases, you can do so by clicking on the **Install Default Prompts** button.
+
+You may further customize the default prompts to better suit your needs.
+
+### Importing Prompts
+
+If you would like to import prompts, you can do so by clicking on the **Import Prompts** button that appears when you select the ellipsis menu next to **Add New Prompt**. Find the parent folder you'd like to import on your local machine and select it. Ensure that you have the below file structure before importing.
+
+**File structure**
+
+- Parent Folder Name (this can be any name you'd like): ie - `my-custom-prompts`
+  - Subfolder Name (this will be used as the prompt name): ie `Short Description`
+    - File Name (file name must be `system.md`, `user.md`, or `refinement.md`): ie `system.md`
+
+You can add multiple subfolders to the parent folder to organize your prompts as needed. You can also add multiple files per subfolder, they just need to be named `system.md`, `user.md`, or `refinement.md`.
+
+You do not need to zip the files; just point Msty to the Parent Folder and Msty will automatically import the prompts.