docs: fix misspelled 'descrition' front-matter key and a typo

docs/features/event-handler/appsync-graphql.md

@@ -89,7 +89,7 @@ If you prefer to use the decorator syntax, you can instead use the same methods
 --8<-- "examples/snippets/event-handler/appsync-graphql/gettingStartedDecorators.ts"
 ```
 
-1. It's recommended to pass a refernce of `this` to ensure the correct class scope is propageted to the route handler functions.
+1. It's recommended to pass a reference of `this` to ensure the correct class scope is propageted to the route handler functions.
 
 ### Scalar functions
 

docs/features/parser.md

@@ -1,6 +1,6 @@
 ---
 title: Parser (Standard Schema)
-descrition: Utility
+description: Utility
 ---
 
 <!-- markdownlint-disable MD043 --->

docs/features/signer.md

@@ -1,6 +1,6 @@
 ---
 title: Signer
-descrition: Utility
+description: Utility
 ---
 
 <!-- markdownlint-disable MD043 --->

docs/features/validation.md

@@ -1,6 +1,6 @@
 ---
 title: Validation
-descrition: Utility
+description: Utility
 ---
 
 <!-- markdownlint-disable MD043 --->