Rename to .tsx for styleguide.
Rename to .tsx for styleguide.

nteract/composition,rgbkrk/nteract,nteract/nteract,rgbkrk/nteract,nteract/composition,nteract/nteract,rgbkrk/nteract,rgbkrk/nteract,nteract/nteract,nteract/nteract,nteract/composition,nteract/nteract,rgbkrk/nteract