docs: capitalize first letter

kenjis · kenjis · commit 78ed34b255d2 · 2024-07-29T15:39:34.000+09:00
diff --git a/contributing/internals.md b/contributing/internals.md
@@ -23,7 +23,7 @@ override that:
     }
 ```
 
-## Type declarations
+## Type Declarations
 
 PHP7 provides [Type declarations](https://www.php.net/manual/en/language.types.declarations.php)
 for method parameters and return types. Use it where possible. Return type

Original file line number	Diff line number	Diff line change
`@@ -23,7 +23,7 @@ override that:`
`23`	`23`	`}`
`24`	`24`	```
`25`	`25`
`26`		`-## Type declarations`
	`26`	`+## Type Declarations`
`27`	`27`
`28`	`28`	`PHP7 provides [Type declarations](https://www.php.net/manual/en/language.types.declarations.php)`
`29`	`29`	`for method parameters and return types. Use it where possible. Return type`