Issue syuntoku14#51 refernece added, preplanning

Precautions about certain workflows while assembling and generating urdf added to the readme. Also referenced in Issue syuntoku14#51

README.md

@@ -128,7 +128,11 @@ The ankle joint below has 4 spherical joints and only two of them were defined a
 ![youtube-video-gif](https://user-images.githubusercontent.com/37873142/133144404-45d9e444-8ddb-4b5f-8970-6e637b750faa.gif)
 
 
-### "In some cases, before export Turn off "Capture design history" "
+## In some cases, before export Turn off "Capture design history"
+
+For preplanning the component placement when working/assembling your own robot. It is recomended to have separate names for components and save individual components in a separate folder, create a back up and, break link with the original. This folder can be later deleted after genearating the urdf. See [Issue #51](https://github.com/syuntoku14/fusion2urdf/issues/51) for problem with "copy-paste" vs "copy-paste new".
+
+
 
 ## How to use