diff --git a/GreenSCSI Manual.pdf b/GreenSCSI Manual.pdf
new file mode 100644
index 0000000..6c612df
Binary files /dev/null and b/GreenSCSI Manual.pdf differ
diff --git a/README.md b/README.md
index 290c255..c912a62 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 ![DeadBug assembly of a Teensy 3.5 directly on a 50 pin SCSI header!](/GreenSCSI-DeadBug.jpg "GreenSCSI Teensy 3.5 Dead Bug")
 
 
-GreenSCSI, BlueSCSI & ArdSCSino are hardware that reproduces SCSI devices (hard disks) with Arduino like devices.
+GreenSCSI, BlueSCSI & ArdSCSino are hardware that reproduce SCSI devices (hard disks) with Arduino like devices.
 
 `GreenSCSI` created by https://github.com/dkgrizzly[dkgrizzly] is a fork of `BlueSCSI` which adds: