Add missing images

diff --git a/sys/cc-by-sa.png b/sys/cc-by-sa.png
new file mode 100644 (file)
index 0000000..c67509f
Binary files /dev/null and b/sys/cc-by-sa.png differ

diff --git a/sys/git-logo.png b/sys/git-logo.png
new file mode 100644 (file)
index 0000000..16ae8d5
Binary files /dev/null and b/sys/git-logo.png differ