Fix typo in docs

Author: hansott

src/Connection.php

@@ -147,7 +147,7 @@ private function parseAddress($address)
 
         if ($this->unix) {
             // remove trailing colon from address for HHVM < 3.19: https://3v4l.org/5C1lo
-            // note that techncially ":" is a valid address, so keep this in place otherwise
+            // note that technically ":" is a valid address, so keep this in place otherwise
             if (substr($address, -1) === ':' && defined('HHVM_VERSION_ID') && HHVM_VERSION_ID < 31900) {
                 $address = (string)substr($address, 0, -1);
             }