Fix preview/card images for blog posts (#1686)

## Description

Images need to be included via relative paths under the blog post

## Type of change

- [x] 🐛 Bugfix
- [x] 🗺️ Documentation

website/blog/2022-11-16-corso-announcement-free-backup-for-microsoft-365.md

@@ -3,9 +3,10 @@ slug: corso-announcement-free-backup-for-microsoft-365
 title: "A Home to Call Your Own: The Need for Your Own Backups in IT"
 authors: nica
 tags: [corso, microsoft 365]
+image: ./images/office_desk.jpg
 ---
 
-![Office desk](../static/img/blog/office_desk.jpg)
+![Office desk](./images/office_desk.jpg)
 
 Have you had it with Google sheets? So have I. Excel is my home. It’s where I write all my best formulae. And what
 about PowerPoint? The way it just finds stock photos for you? The automatic ‘alternative designs for this slide’

website/blog/2022-12-2-your-own-backups.md

@@ -3,11 +3,12 @@ slug: your-own-backups
 title: "Owning Your Identity and Data For The Price of One ☕️/Month "
 authors: nica
 tags: [corso, microsoft 365]
+image: ./images/gian_tweet_backups.png
 ---
 
 I recently saw a tweet that really spoke to me:
 
-![Gian Paolo tweet stating The only long-term solution to maintain your identity is: 1. your own domain name 2. your own website/blog 3. several backups](../static/img/blog/gian_tweet_backups.png)
+![Gian Paolo tweet stating The only long-term solution to maintain your identity is: 1. your own domain name 2. your own website/blog 3. several backups](./images/gian_tweet_backups.png)
 
 Gian was really addressing the chaotic situation with Twitter, but it feels much more broadly applicable in today’s climate.
 Given the increased role of automation in flagging “bad” accounts,
@@ -67,7 +68,7 @@ your data and independence from your primary cloud provider. Data is also compre
 (pennies a month with systems such as AWS Glacier Instant Access) and encrypted with user-provided keys so that no one
 can see your data and that it is safe against hackers and ransomware.
 
-![corso Screenshot](../static/img/blog/corso_backup.png)
+![corso Screenshot](./images/corso_backup.png)
 
 Corso is available now, and we’d love to hear your thoughts!
 Download it, [give it a try,](https://corsobackup.io/docs/intro/) and