docs(flickr): describe authentication

packages/docs/pages/.vitepress/config.js

@@ -35,6 +35,7 @@ export default defineConfig({
           text: 'Connections',
           collapsible: true,
           items: [
+            { text: 'Flickr', link: '/connections/flickr' },
             { text: 'Github', link: '/connections/github' },
             { text: 'Scheduler', link: '/connections/scheduler' },
             { text: 'Slack', link: '/connections/slack' },

packages/docs/pages/connections/flickr.md

@@ -0,0 +1,22 @@
+# Flickr
+
+:::info
+This page explains the steps you need to follow to set up the Flickr
+connection in Automatisch. If any of the steps are outdated, please let us know!
+:::
+
+1. Go to the [link](https://www.flickr.com/services/apps/create/) to **create an
+   app** on Flickr API.
+2. Click **Request an API key**.
+3. Apply for a non-commercial key.
+4. Fill the field of **What is the name of your app?**.
+5. Fill the field of **What are you building?**.
+6. Check the checkboxes.
+7. Click on **Submit** button.
+8. Copy **Key** and **Key Secret** values and save them to use later.
+9. Click **Edit auth flow for this app** to configure "Callback URL".
+10. Copy **OAuth Redirect URL** from Automatisch and paste it to the **Callback URL** field.
+11. Click **Save changes**.
+12. Paste **Key** and **Secret** values you have saved from the 8th step and paste them into Automatisch as **Consumer Key** and **Consumer Secret**, respectively.
+13. Click **Submit** button on Automatisch.
+14. Now, you can start using the Flickr connection with Automatisch. **Consumer Key** and **Consumer Secret**, respectively.