try better aspect ratio for previews

Author: kevinlinxc

.gitignore

@@ -1,3 +1,4 @@
 .vscode/
 resources/
-public/
+public/
+.DS_Store

layouts/partials/head.html

@@ -15,8 +15,8 @@
       <meta property="og:image" content='https://github.com/stemformulas/stemformulas.github.io/raw/main/equalsicon-wide.png'/>
       <meta property="og:description" content='All of the STEM formulas, eventually'/>
       <meta property="og:url" content='https://stemformulas.com'/>
-      <meta property="og:image:width" content='800' />
-      <meta property="og:image:height" content='1200' /><!-- TYPE BELOW IS PROBABLY: 'website' or 'article' or look on https://ogp.me/#types -->
+      <meta property="og:image:width" content='1500' />
+      <meta property="og:image:height" content='600' /><!-- TYPE BELOW IS PROBABLY: 'website' or 'article' or look on https://ogp.me/#types -->
       <meta property="og:type" content='website'/>
       <meta name="twitter:title" content="{{ .Site.Title | emojify }}"/>
       <meta name="twitter:description" content="All of the STEM formulas, eventually"/>
@@ -31,7 +31,7 @@
       <meta property="og:image" content="{{  printf "%s" "preview.png" | printf "%s%s" .RelPermalink | printf "%s%s" "https://github.com/stemformulas/stemformulas.github.io/raw/main/content" | printf "%s"
       | emojify }}" />
       <meta property="og:image:width" content='1500' />
-      <meta property="og:image:height" content='1500' />
+      <meta property="og:image:height" content='600' />
       <meta property="og:type" content='website'/>
       <meta property="og:description" content="{{ with .Description }}{{ . }}{{ else }}{{ if .IsPage }}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end }}" />
       <meta name="twitter:title" content="{{ .Title | emojify }} &middot; {{ .Site.Title | emojify }}" />