Update 2019-08-08-demo-blog.md

Author: SoumyaK4

_posts/2019-08-08-demo-blog.md

@@ -83,6 +83,18 @@ Moon
 
 > An example showing the `danger` type prompt.
 {: .prompt-danger }
+
+> [!note]
+> This is a `note` github alert
+
+> [!tip]
+> This is a `tip` github alert
+
+> [!warning]
+> This is a `warning` github alert
+
+> [!caution]
+> This is a `caution` github alert
 <!-- markdownlint-restore -->
 
 ## Tables
@@ -201,4 +213,4 @@ The image below will toggle dark/light mode based on theme preference, notice it
 ## Reverse Footnote
 
 [^footnote]: The footnote source
-[^fn-nth-2]: The 2nd footnote source
+[^fn-nth-2]: The 2nd footnote source