howto

OSM/howto.md

@@ -2,7 +2,7 @@
 
 ## OpenStreetMap
 
-The code you find here makes use of services provided by **OpenStreetMap**. **OpenStreetMap** is built by a community of mappers who contribute and maintain data. See https://www.openstreetmap.org/about.
+The code you find here makes use of services provided by **OpenStreetMap**. **OpenStreetMap** is built by a community of mappers who contribute and maintain data. See <https://www.openstreetmap.org/about>.
 
 ## Use OpenLayers to build the map
 
@@ -33,4 +33,4 @@ Also shows how to use PHP code in a bash script.
 
 ## So, how to embed the map in a web page?
 
-The **iframe** tag is a good starting point. See https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe.
+The **iframe** tag is a good starting point. See <https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe>.