working-with: board support

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

docs/manual/working-with.txt

@@ -25,5 +25,5 @@ interested in hacking it to add:
 
 * new packages: refer to the xref:adding-packages[Developer guide]
 
-* new board support: refer to the xref:customize-store[], more specifically
-  xref:customize-store-board-support[].
+* new board support: refer to the
+  xref:customize-store-board-support[Developer guide].