diff --git a/lh-businesscard/README.md b/lh-businesscard/README.md
index e94d8b8..af4af30 100644
--- a/lh-businesscard/README.md
+++ b/lh-businesscard/README.md
@@ -1,15 +1,19 @@
 # lh-businesscard
+
 A LaTeX class (based on the [beamer class](https://www.ctan.org/pkg/beamer)) 
 that implements the cooperate style of the
 [Software Assurance & Security Research Team Sheffield](https://logialhacking.com).
 
 ## Prerequisites 
+
 * The `lh-presentation` class/theme.
 
 ## Installation 
+
 * Copy the various `*.sty` and `*.cls` files into your `texmf` tree. 
 
 ## Usage
+
 The `lh-businesscard` class is a customised setup of the 
 [beamer class](https://www.ctan.org/pkg/beamer).  Thus, please see the
 beamer documentation for its detailed use. In general, you can just 
@@ -19,6 +23,9 @@ Currently, the class only defines the back of the card, as for the front,
 the style of the university is used. 
 
 ## License
+
 This project is dual-licensed under a 2-clause BSD-style license and/or 
 the LPPL version 1.3c or (at your opinion) any later version. 
 
+SPDX-License-Identifier: LPPL-1.3c+ OR BSD-2-Clause
+