add readme file to 2geom directory to warn people not to make code changes there

diff --git a/src/2geom/!PLEASE DON'T MAKE CHANGES IN THESE FILES.README b/src/2geom/!PLEASE DON'T MAKE CHANGES IN THESE FILES.README
new file mode 100644 (file)
index 0000000..6d4d56d
--- /dev/null
+++ b/src/2geom/!PLEASE DON'T MAKE CHANGES IN THESE FILES.README
@@ -0,0 +1,7 @@
+All code files in this directory are *direct* copies of the files in 2geom's svn.\r
+If you want to change the code, please change it in 2geom, then copy the files here.\r
+Otherwise, I will probably miss that you changed something in Inkscape's copy, and\r
+destroy your changes by copying 2geom's files over it during the next time I update\r
+Inkscape's copy of 2geom.\r
+\r
+2geom's SVN = https://lib2geom.svn.sourceforge.net/svnroot/lib2geom/lib2geom/trunk
\ No newline at end of file