Fix typos on the annotations file (#28)

Author: EduYukio

src/content/wiki/annotations.mdx

@@ -881,7 +881,7 @@ Define an additional signature for a function.
 
 <Remark type="note">
   If you are writing [definition files](/wiki/definition-files), it is
-  recommended to instead write multiple function definitons, one for each needed
+  recommended to instead write multiple function definitions, one for each needed
   signature with its [`@param`](#param) and [`@return`](#return) annotations.
   This allows the functions to be as detailed as possible. Because the functions
   do not exist at runtime, this is acceptable.
@@ -1053,7 +1053,7 @@ Looking to do this with a table? You probably want to use [`@enum`](#enum)
 
 ### @private
 
-Mark a function as private to a [`@class`](#class). Private functions can be accessed only from within their class and are **not** accessable from child classes.
+Mark a function as private to a [`@class`](#class). Private functions can be accessed only from within their class and are **not** accessible from child classes.
 
 **Syntax**
 
@@ -1213,7 +1213,7 @@ function request(url) end
 ### @source
 
 Provide a reference to some source code which lives in another file. When
-searching for the defintion of an item, its `@source` will be used instead.
+searching for the definition of an item, its `@source` will be used instead.
 
 **Syntax**