Bump DISK_CACHE_BREAKER to force-recreate MDX cache

Author: smikitky

src/pages/[[...markdownPath]].js

@@ -96,7 +96,7 @@ function reviveNodeOnClient(key, val) {
 
 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 // ~~~~ IMPORTANT: BUMP THIS IF YOU CHANGE ANY CODE BELOW ~~~
-const DISK_CACHE_BREAKER = 7;
+const DISK_CACHE_BREAKER = 7.1;
 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 // Put MDX output into JSON for client.