Update config.md

Co-authored-by: Mauricio Vásquez <[email protected]>

Author: alban

config.md

@@ -421,7 +421,7 @@ For POSIX platforms, the configuration structure supports `hooks` for configurin
 Hooks allow users to specify programs to run before or after various lifecycle events.
 Hooks MUST be called in the listed order.
 All hooks MUST be passed a data structure over stdin so that they may do work appropriately.
-Exect when specified otherwise above, the data structure is the [state](runtime.md#state) of the container.
+Except when specified otherwise above, the data structure is the [state](runtime.md#state) of the container.
 
 ### <a name="configHooksPrestart" />Prestart