Fixed the external link to a new tab (LOLIN boards)

Author: pedrominatel

Diff for: docs/source/boards/boards.rst

@@ -84,8 +84,16 @@ Add here the third party boards, listed by vendors.
 LOLIN
 *****
 
-* `LOLIN D32 <https://www.wemos.cc/en/latest/d32/d32.html>`_
-* `LOLIN D32 Pro <https://www.wemos.cc/en/latest/d32/d32_pro.html>`_
+* |board_lolin_d32|
+* |board_lolin_d32_pro|
+
+.. |board_lolin_d32| raw:: html
+
+  <a href="https://www.wemos.cc/en/latest/d32/d32.html" target="_blank">LOLIN D32</a>
+
+.. |board_lolin_d32_pro| raw:: html
+
+  <a href="https://www.wemos.cc/en/latest/d32/d32_pro.html" target="_blank">LOLIN D32 Pro</a>
 
 Generic Vendor
 **************