Put the description in a more logical place.

Author: Crell

spec.md

@@ -631,10 +631,6 @@ public function process(string $algorithm, &...$parts)
 }
 ```
 
-When invoking a function or method, the same rules apply for the arguments to the function as for the parameters.
-Additionally, if using named arguments, there MUST NOT be a space between the argument name
-and colon, and there MUST be a single space between the colon and the argument value.
-
 ### 4.6 Modifier Keywords
 
 Properties and methods of a class have numerous keyword modifiers that alter how the
@@ -718,6 +714,13 @@ $app->get('/hello/{name}', function ($name) use ($app) {
 });
 ```
 
+If using named arguments, there MUST NOT be a space between the argument name
+and colon, and there MUST be a single space between the colon and the argument value.
+
+```php
+somefunction($a, b: $b, c: 'c');
+```
+
 Method chaining MAY be put on separate lines, where each subsequent line is indented once. When doing so, the first
 method MUST be on the next line.