adding a readme

archetypes/bod-book/support/latex/Readme.md

@@ -0,0 +1,28 @@
+This folder contains the sbabook template and the local addition of the pillar template. 
+
+### SBA
+
+As a general principle the sbabook is read-only and it is managed by cloning 
+	https://github.com/cdlm/sbabook
+
+Now due to the weakness of git subrepo it is difficult to assess whether the files have been modified. 
+Our experiments show the contrary and shed a bad light on the use of subrepo. 
+The following expression may be useful (we are not convinced)
+
+```
+git subrepo pull --force --branch=v0.2.8 archetypes/bod-book/support/latex/sbabook
+```
+Pay attention this expression and the git subpo status do not give information whether files have been modified!
+
+### Local customisation and addition
+
+	Edit the file /support/latex/texlive.deps to introduce any LaTeX package that you would need.
+	By default we use
+		amsmath
+		import
+		ulem 
+		
+Have fun 
+
+
+