update README

README

@@ -14,39 +14,16 @@ Add this to .gitattributes in some dir:
 
 ### Testing
 
-run: ipython3 -i runtests.py
-
-    In [18]: runTest("translated-remote")
-    Using custom PO merge driver (local; /tmp/merge-po.JIyZ)
-    0
-    0
-
-    In [19]: runTest("translated-local-and-remote")
-    Using custom PO merge driver (local; /tmp/merge-po.lZsH)
-    0
-    0
-
-
-    In [22]: runTest("confict")
-    Using custom PO merge driver (local; /tmp/merge-po.7FoH)
-    Conflict(s) detected
-       between /tmp/merge-po.7FoH.local and /tmp/merge-po.7FoH.remote
-    1
-    --- /tmp/tmp5cbetvbs/local      2018-03-22 16:40:55.000000000 +0100
-    +++ tests/confict/merged        2018-03-22 16:40:51.954196950 +0100
-    @@ -27,9 +27,9 @@
-     "> **amnesia**, *noun*:<br/>\n"
-     "> forgetfulness; loss of long-term memory.\n"
-     msgstr ""
-    -"#-#-#-#-#  merge-po.7FoH.local-only (Tails)  #-#-#-#-#\n"
-    +"#-#-#-#-#  merge-po.PE9w.local-only (Tails)  #-#-#-#-#\n"
-     "> Je ne sais pas \n"
-    -"#-#-#-#-#  merge-po.7FoH.remote-only (Tails)  #-#-#-#-#\n"
-    +"#-#-#-#-#  merge-po.PE9w.remote-only (Tails)  #-#-#-#-#\n"
-     "Un deuxième traduction."
-
-     #. type: Plain text
-    1
+To run the testsuite simply run runtests.py in the topdir.
+
+For each test there is a subfolder in the test dir with folling files:
+* base, local and remote - the 3 files for a 3-way merge
+* merged - the file after the merge is done
+* pot - the corresponding pot file, to get a cleaner picture for sorting and removal context.
+        to create such an file run:
+            msghack --empty remote > pot
+
+you can simply look into the examples and run diff to see what is done.
 
 ### Documentation