Typo/Grammar: 'Explicity' to 'Explicit', Add article "the"

Author: Trifall

docs/blog/elysia-05.md

@@ -177,7 +177,7 @@ type ContentType = |
     | 'application/x-www-form-urlencoded'
 ```
 
-You can find more detail at [explicity body](/concept/explicit-body) page in concept.
+You can find more detail at the [explicit body](/concept/explicit-body) page in concept.
 
 ### Numeric Type
 We found that one of the redundant task our developers found using Elysia is to parse numeric string.

docs/concept/explicit-body.md

@@ -15,7 +15,7 @@ head:
       content: By default, Elysia will try to determine body parsing function ahead of time and pick the most suitable function to speed up the process. This allows Elysia to optimize body parser ahead of time, and reduce overhead in compile time but you can explicitly control Elysia to use a certain function.
 ---
 
-# Explicity Body
+# Explicit Body
 
 By default, Elysia will try to determine body parsing function ahead of time and pick the most suitable function to speed up the process.