fix syntax highlights in light mode

_projects/longerProjectTitle.md

@@ -53,15 +53,21 @@ define foobar() {
 ~~~
 
 (which makes copying & pasting easier). You can optionally mark the
-delimited block for Pandoc to syntax highlight it by specifying the languagae after the start of a block (e.g. `~~~python`) which would look like :
-
-~~~python
-import time
-# Quick, count to ten!
-for i in range(10):
-    # (but not *too* quick)
-    time.sleep(0.5)
-    print(i)
+delimited block for Pandoc to syntax highlight it by specifying the languagae after the start of a block (e.g. `~~~cpp`) which would look like :
+
+~~~cpp
+#include <iostream>
+using namespace std;
+
+int main() 
+{    
+    cout << "Size of char: " << sizeof(char) << " byte" << endl;
+    cout << "Size of int: " << sizeof(int) << " bytes" << endl;
+    cout << "Size of float: " << sizeof(float) << " bytes" << endl;
+    cout << "Size of double: " << sizeof(double) << " bytes" << endl;
+
+    return 0;
+}
 ~~~
 
 ### An H3 header ###