docs: move variable declarations

Signed-off-by: Athan <[email protected]>

Author: kgryte

lib/node_modules/@stdlib/_tools/eslint/rules/no-unnecessary-nested-functions/examples/index.js

@@ -22,12 +22,9 @@ var Linter = require( 'eslint' ).Linter;
 var rule = require( './../lib' );
 
 var linter = new Linter();
-var code;
-var config;
-var out;
 
 // Generate source code containing nested function without dependencies:
-code = [
+var code = [
 	'function outer() {',
 	'  function inner() {',
 	'	return 42;',
@@ -37,7 +34,7 @@ code = [
 ].join( '\n' );
 
 // Define the ESLint configuration:
-config = {
+var config = {
 	'rules': {
 		'no-unnecessary-nested-functions': 'error'
 	}
@@ -47,7 +44,7 @@ config = {
 linter.defineRule( 'no-unnecessary-nested-functions', rule );
 
 // Lint the code:
-out = linter.verify( code, config );
+var out = linter.verify( code, config );
 console.log( out );
 /* =>
 	[