adding a cover

README.md

@@ -1,5 +1,7 @@
 # FSI Russian 1973
 
+![cover](fsi-Russian-1973.png)
+
 This is FSI Russian, 1973 version, digitized in docbook format and available in dockbook, pdf, html, odt, epub formats.
 
 The docbook format was chosen because it is possible to convert it in many different other formats. It is also a tagged language, which permits to process the document and extract information like the vocabulary, the phrases etc.
@@ -26,4 +28,4 @@ I processed the docbook document threw pandoc to obtain an .odt document.
 
 I formatted a litle bit the document.
 
-There is an old tex document (converted from the xml file some years ago ...)
+There is an old tex document (converted from the xml file some years ago ...)