feat: add support for .env with comments

src/DotEnv.php

@@ -10,6 +10,9 @@ class DotEnv {
     $contents = file_get_contents($filepath);
     $lines = explode(PHP_EOL, $contents);
     $envvars = array_reduce($lines, function ($vars, $line) {
+      if (strpos(ltrim($line), '#') === 0) {
+        return $vars;
+      }
       $parts = explode('=', $line);
       $partsCount = count($parts);
       if ($partsCount === 1 && strlen($parts[0]) <= 0) {