diff --git a/doc/html/arch1.jpg b/doc/html/arch1.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..288d896060a47b0809d90792349c80c765681ee6
Binary files /dev/null and b/doc/html/arch1.jpg differ
diff --git a/doc/html/arch2.jpg b/doc/html/arch2.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..ca9265c6ba9601a99e01b0888f90095ec0c281dc
Binary files /dev/null and b/doc/html/arch2.jpg differ
diff --git a/doc/html/arch3.jpg b/doc/html/arch3.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..0dd1d531a61b52f683d43697bbd720ea190fd24e
Binary files /dev/null and b/doc/html/arch3.jpg differ