Header.md

@@ -8,7 +8,7 @@ The header is the first object of a CZML file, it describes for example what kin
 
 **Example** :
 
-;;;
+```
   {
     "id":"document",
     "version":"1.0",
@@ -20,7 +20,7 @@ The header is the first object of a CZML file, it describes for example what kin
       "range":"LOOP_STOP",
       "step":"SYSTEM_CLOCK_MULTIPLIER"
     }
-;;;
+```
 
 # Properties