Update kakarot_components.md (#1541)

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It should be "2 different kind**s**" to match the plural form.

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docs/general/kakarot_components.md

@@ -1,6 +1,6 @@
 # Kakarot Components and Deployment
 
-The entire Kakarot protocol is composed of 2 different kind of Starknet
+The entire Kakarot protocol is composed of 2 different kinds of Starknet
 contracts:
 
 - Kakarot