Updated User Reference Manual (markdown)

User-Reference-Manual.md

@@ -148,6 +148,7 @@ ___
 
 * **feedrate/minute** - How much will the machine travel in 1 minute
 * **Plunge speed** - the feed speed gets reduced when the slope of the path is above the Plunge angle
+* **Plunge angle** - any angle greater than the plunge angle will activate plunge speed
 * **Spindle rpm** - spindle revolutions per minute
 
 
@@ -159,7 +160,7 @@ ___
 
 * **Tool number** - this parameter is exported with toolchange command
 * **Cutters** - supported types are now following:
-
+![cutters](https://cloud.githubusercontent.com/assets/648108/12069447/ade1eefc-b006-11e5-937b-735102b35aa6.png)
   * Ballnose
   * Cylinder
   * V-carve - width is the maximum width of the cone.