downloading the bear upgrade files from github  

downloading the bear upgrade files from github

I am missing something that should be easy; below you can see what I have tried but I don't see the easy download file by clicking here
when I try to down load a github STL file i get a html file to its web page
https://github.com/gregsaun/prusa_i3_bear_upgrade/blob/master/full_upgrade/for_mk3/printed_parts/stl/build_helper_106mm.stl

ok that is odd so I go to the raw page and select all of the file on the screen here is a small fragment then I copy it open a blank xcode file and paste in the text and save it as a text file and change the file type to .stl from .txt and then I try to open it in Slic3rPR and I get this error So I clearly have wetware failure between my ears... just trying to get the bear upgrade stl files.... it is so easy to get files like this from places like thingverse why is it so hard to get them from Github?

solid build_helper_106.stl
facet normal 0 -0.707107 0.707106
outer loop
vertex 50.5 0 5.5
vertex 51.5 0 5.5
vertex 51 0.5 6
endloop
endfacet
facet normal 0 -1 0
outer loop
vertex 50.5 0 5.5
vertex 47 0 2
vertex 51.5 0 5.5
endloop
endfacet
facet normal -0.707106 -1.54137e-006 0.707108
outer loop
vertex 50.5 0 5.5
vertex 51 0.5 6
vertex 47 0 2
endloop
endfacet
facet normal 0 -0.707107 0.707106
outer loop
vertex 51 0.5 6
vertex 51.5 0 5.5
vertex 51.5 0.5 6
endloop
endfacet