Fix some goofs in the latest Arcade blog post (#11128)

* put posting date in the right place

* italic isn't rendering with bold

Author: ganicke

docs/blog.md

@@ -1,9 +1,9 @@
 # Microsoft MakeCode Blog
 
-February 13th, 2026 by [Jaqster](https://github.com/jaqster)
-
 ## [MakeCode Arcade 2026 Update](/blog/arcade/update-feb-2026)
 
+February 13th, 2026 by [Jaqster](https://github.com/jaqster)
+
 Today we are pleased to release our 2026 MakeCode Arcade updates!
 
 **[Continue reading this blog post](/blog/arcade/update-feb-2026)**

docs/blog/arcade/update-feb-2026.md

@@ -108,7 +108,7 @@ The [unfollow](https://arcade.makecode.com/reference/sprites/sprite/unfollow) bl
 
 ### Math Constants
 
-The Math Constants block contains some helpful values like **Pi (π)**, **_e_**, and some square root and logarithmic values.
+The Math Constants block contains some helpful values like **Pi (π)**, **e**, and some square root and logarithmic values.
 
 ![Math constants](/static/blog/arcade/update-feb-2026/math-constants.png)