Fix height from DOB endpoint index.php (#18)

They added an underscore ugh

Author: danielhmetro

frontend/index.php

@@ -389,7 +389,7 @@ function hexToABGR($hex) {
 			if ($_GET['height_radio_1'] == 'dob') {
 				$dob_get = file_get_contents('https://data.cityofnewyork.us/resource/5zhs-2jue.json?bin=' . $bin_1);
 				print_r($dob_get);
-				$meters_1 = json_decode($dob_get, true)['0']['heightroof'] * 0.3048;
+				$meters_1 = json_decode($dob_get, true)['0']['height_roof'] * 0.3048;
 				$alt_mode_1 = "relativeToGround";
 			}
 			// Get height using cell in db
@@ -430,7 +430,7 @@ function hexToABGR($hex) {
 				if ($_GET['height_radio_2'] == 'dob') {
 					$dob_get = file_get_contents('https://data.cityofnewyork.us/resource/5zhs-2jue.json?bin=' . $bin_2);
 					print_r($dob_get);
-					$meters_2 = json_decode($dob_get, true)['0']['heightroof'] * 0.3048;
+					$meters_2 = json_decode($dob_get, true)['0']['height_roof'] * 0.3048;
 					$alt_mode_2 = "relativeToGround";
 				}
 				// Get height using cell in db