fix(envfp): fix typo

Author: bene2k1

environmental-footprint/environmental-footprint/additional-content/environmental-footprint-calculator.mdx

@@ -114,7 +114,7 @@ The manufacturing impact is prorated based on the server's lifespan and the dura
 
 <Lightbox src="scaleway-allocation-rules-customer-it-equip.webp" alt="" />
 
-##### Calculation example
+#### Calculation example
 
 For the use of an Elastic Metal server, with a lifespan of 6 years (52 560 hours) and power of 110w, for 100 hours and considering via Boavizta estimates that the impact of the manufacturing of this server is 850 kgCo2e, we make the following calculation: