fix two typos in comments

src/or/directory.c

@@ -3398,7 +3398,7 @@ connection_dir_finished_flushing(dir_connection_t *conn)
   tor_assert(conn->base_.type == CONN_TYPE_DIR);
 
   /* Note that we have finished writing the directory response. For direct
-   * connections this means we're done, for tunneled connections its only
+   * connections this means we're done; for tunneled connections it's only
    * an intermediate step. */
   if (conn->dirreq_id)
     geoip_change_dirreq_state(conn->dirreq_id, DIRREQ_TUNNELED,

src/or/geoip.c

@@ -969,7 +969,7 @@ geoip_get_dirreq_history(dirreq_type_t type)
                                                &ent->completion_time);
       if (time_diff == 0)
         time_diff = 1; /* Avoid DIV/0; "instant" answers are impossible
-                        * by law of nature or something, but a milisecond
+                        * by law of nature or something, but a millisecond
                         * is a bit greater than "instantly" */
       bytes_per_second = (uint32_t)(1000 * ent->response_size / time_diff);
       dltimes[ent_sl_idx] = bytes_per_second;