add link to "official" lyx-A&A wiki page

change font to sans

astro-lyx.lyx

@@ -16,10 +16,10 @@
 \inputencoding auto
 \fontencoding global
 \font_roman "utopia" "default"
-\font_sans "default" "default"
+\font_sans "helvet" "default"
 \font_typewriter "default" "default"
 \font_math "auto" "auto"
-\font_default_family default
+\font_default_family sfdefault
 \use_non_tex_fonts false
 \font_sc false
 \font_osf false
@@ -353,7 +353,23 @@ LyX
 \emph on
 aa.layout
 \emph default
- file, if this doesn't work for you let me know.
+ file, which I use in the above, if this doesn't work for you let me know
+ (I have a customised version with more features you can try).
+\end_layout
+
+\begin_layout Standard
+See also 
+\begin_inset Flex URL
+status open
+
+\begin_layout Plain Layout
+
+https://wiki.lyx.org/Layouts/Astronomy-Astrophysics
+\end_layout
+
+\end_inset
+
+.
 \end_layout
 
 \begin_layout Subsection*

astro-lyx.md

@@ -47,7 +47,9 @@ Astronomy and Astrophysics (A&A)
 
 4.  Change the text to include your writing
 
-Note: *LyX* comes with an *aa.layout* file, if this doesn't work for you let me know.
+Note: *LyX* comes with an *aa.layout* file, which I use in the above, if this doesn't work for you let me know (I have a customised version with more features you can try).
+
+See also <https://wiki.lyx.org/Layouts/Astronomy-Astrophysics>.
 
 Galaxies 
 --------