fixed readme merge

README.md

@@ -64,4 +64,4 @@ In the industry two systems are used. A 2 component epoxy resin putty by [Weicon
 A single component UV curable expory resin system, e.g. by [Shenk](http://www.schenck-worldwide.com/PDF/de-de1/Epoxidharz-Unwucht-Korrektursystem.pdf). In german it is called Wuchtkitt. The compound has a ceramic filling and the density is 2 gram per cubic centimer. Component was ordered via [modular](https://www.modulor.de).
 An alternative is to use lead or metal tape. Lead has a density of 11 gram per cubic centimer. <br>
 Optical plate: <br>
-Used an optical aluminum breadboard from Thorlabs with M6 screws as base. Do not attach the device to something heavy this make the measurements worse. Typically, you want it decoupled from the external world and place the object under study on foam or hang it cords.
+Used an optical aluminum breadboard from Thorlabs with M6 screws as base. Do not attach the device to something heavy this make the measurements worse. Typically, you want it decoupled from the external world and place the object under study on foam or hang it cords.