deletions | additions       diff --git a/img/4umCB_1500nm.jpg b/img/4umCB_1500nm.jpg  deleted file mode 100644  index 217b38e..0000000  Binary files a/img/4umCB_1500nm.jpg and /dev/null differ diff --git a/img/4umCB_Before.png b/img/4umCB_Before.png  new file mode 100644  index 0000000..0a4b861  Binary files /dev/null and b/img/4umCB_Before.png differ