exampleSite: Fix code block formatting.

It seems that a code block without a blank line before the ``` marker
isn't detected correctly.

exampleSite/content/fragments/faq/code-faq.md

@@ -17,6 +17,7 @@ background = "secondary"
 
 <details>
 <summary>Code (subitem)</summary>
+
 ```
 +++
 title = "How to sit on the laptop?"

exampleSite/content/fragments/graph/code-stats.md

@@ -21,6 +21,7 @@ subtitle = "Beautifully showcase your data with graphs based on chart.js"
 
 <details>
 <summary>Code (config.json)</summary>
+
 ```
 {
   "type": "line",

exampleSite/content/fragments/items/code-items-no-content.md

@@ -22,6 +22,7 @@ subtitle= "Column based items with icons"
 
 <details>
 <summary>Code (subitem)</summary>
+
 ```
 +++
 weight = 10

exampleSite/content/fragments/items/code-items-only.md

@@ -22,6 +22,7 @@ background = "secondary"
 
 <details>
 <summary>Code (subitem)</summary>
+
 ```
 +++
 weight = 10

exampleSite/content/fragments/items/code-items.md

@@ -22,6 +22,7 @@ subtitle= "Column based items with icons"
 
 <details>
 <summary>Code (subitem)</summary>
+
 ```
 +++
 title = "Column 1"

exampleSite/content/fragments/items/code-logos-no-content.md

@@ -23,6 +23,7 @@ subtitle= "Column based items with images"
 
 <details>
 <summary>Code (subitem)</summary>
+
 ```
 +++
 weight = 10

exampleSite/content/fragments/items/code-logos-only.md

@@ -22,6 +22,7 @@ background = "secondary"
 
 <details>
 <summary>Code (subitem)</summary>
+
 ```
 +++
 weight = 10

exampleSite/content/fragments/items/code-logos.md

@@ -22,6 +22,7 @@ subtitle= "Column based items with images"
 
 <details>
 <summary>Code (subitem)</summary>
+
 ```
 +++
 title = "Column 1"

exampleSite/content/fragments/member/code-members.md

@@ -21,6 +21,7 @@ title = "Members fragment - Multiple members"
 
 <details>
 <summary>Code (subitem)</summary>
+
 ```
 +++
 title = "Huge Gopher"

exampleSite/content/fragments/member/code-single-member.md

@@ -22,6 +22,7 @@ title = "Single Member Fragment"
 
 <details>
 <summary>Code (subitem)</summary>
+
 ```
 +++
 title = "Huge Gopher"

exampleSite/content/fragments/portfolio/code-portfolio.md

@@ -23,6 +23,7 @@ subtitle = "Displaying animals with links and modals"
 
 <details>
 <summary>Code (subitem)</summary>
+
 ```
 +++
 weight = 10

exampleSite/content/fragments/pricing/code-pricing.md

@@ -5,6 +5,7 @@ weight = 111
 
 <details>
 <summary>Code (index)</summary>
+
 ```
 +++
 fragment = "pricing"
@@ -23,6 +24,7 @@ Supports feature listing of different plans and links to a payment service.
 
 <details>
 <summary>Code (subitem)</summary>
+
 ```
 +++
 weight = 10