Isaac Morris

Update of the README to include sqrt, curt and fort commands (as added to latex.inputplugin in previous pull request) in the Analysis section.

Update of latex.inputplugin to include roots

2

This update of latex.inputplugin adds the unicode characters for square root, cube root and fourth root (as available at https://en.wikipedia.org/wiki/Radical_symbol), to allow for roots to be included in mathematical equations...