feat: backup blog posts and fix WordPress caption shortcodes in markdown files

src/data/post/astrowind-template-in-depth.mdx

@@ -129,7 +129,7 @@ import MyComponent from '../../components/MyComponent';
 
 _MyComponent_ renders the markdown to html and then injects it into the div.
 
-This actually has a big advantage -- consider that with the normal usage you don't have access to the slot contents: _Astro_ just plops the content into the _<slot/>_ tag. Using this method, however, allows you to access the content and further manipulate it before it gets inserted into the html.
+This actually has a big advantage -- consider that with the normal usage you don't have access to the slot contents: _Astro_ just plops the content into the _<slot/>_ tag. Using this method, however, allows you to access the content and further manipulate it before it gets inserted into the html.
 
 This allows a great deal of flexibility in component design.
 
@@ -165,10 +165,10 @@ Some things to note, here:
   be a string...)
 </DListItem>
 <DListItem dt="There are several <em>Fragment</em> children">
-  Furthermore, these &lt;Fragment/&gt; elements each have a _slot="(value)"_ specifier.
+  Furthermore, these <Fragment/> elements each have a _slot="(value)"_ specifier.
 </DListItem>
 
-The latter seems odd, because &lt;Fragment/&gt; is a built-in component over which you have no control, and doesn't have a provision for rendering slots, <em>per se</em>.
+The latter seems odd, because <Fragment/> is a built-in component over which you have no control, and doesn't have a provision for rendering slots, <em>per se</em>.
 
 The answer lies in a paragraph in the _Astro_ docs, slots section, which states:
 
@@ -180,7 +180,7 @@ That's pretty concise and a bit of a head-scratcher to read, but basically what
 1. you can reference a slot from a child element of that component and,
 1. provide content to the parent component's slot from the child by naming the slot in the child with a `slot="<slot-name>"` property assignment, where the _slot-name_ is the parent's slot.
 
-So, in the example above, the _CallToAction_ component defines the _subtitle_ slot, and the following _&lt;Fragment slot="subtitle"&gt;_ populates the slot with the following content:
+So, in the example above, the _CallToAction_ component defines the _subtitle_ slot, and the following _<Fragment slot="subtitle">_ populates the slot with the following content:
 
 ```astro
 <Fragment slot="subtitle">