content: add social image to cf proxy post

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>

content/posts/how-cloudflare-proxies-cname-records.md

@@ -5,6 +5,7 @@ slug = "how-cloudflare-proxies-cname-records"
 tags = ["#100DaysToOffload", "cloudflare"]
 title = "How Cloudflare proxies CNAME records"
 description = "Everybody probably understands how Cloudflare proxies A/AAAA records, but how it proxies CNAME records is also pretty interesting. Let's dive into how that happens and why it can often break other products that need you to set CNAME records."
+socialImage = "uploads/cf_proxy_social.webp"
 +++
 
 As people who've read my previous post would know, I recently started using [Purelymail](https://purelymail.com/) for my email needs (the how and why of it can be found [here](/posts/switching-my-email-to-purelymail/)). I also mentioned there, that Cloudflare's proxy-by-default nature caused Purelymail to not detect my CNAME settings and disabling the proxy did the job. I contacted Purelymail's Scott about this and he eventually pushed a fix out that \*should\* have fixed it, but since he did not have a Cloudflare account, he couldn't verify this exact case.