first pass at a token navbar experience

README

@@ -19,6 +19,6 @@ python3 main.py
 
 ### TODO: 
 - fix up lame book linkages to tabels that are so not 3nf, *_LST tables, etc.
-- use flask-wtf and flask-bootstrap, see this: https://medium.com/better-programming/how-to-use-flask-wtforms-faab71d5a034 for author/<id>
 - consider getting rest of Book class connected, e.g. series, loan, etc.
 - see if we can break this out of main.py -- can't recall what was circular about this, but at least the wtf bits seem to be able to be moved out, so why not do that
+- get main.html to be some sort of include so that other htmls, can be clicked on / use back button, reload, etc. and it all works, but the whoel thing feels like a discrete app