Nit: the first issue of Marat's "L'Ami du peuple" wasn't published until several months after the fall of the Bastille and thus played no role in radicalizing the populace prior to the Revolution.
But the broader point that the French Revolution was proceeded by a radicalized literature [0] is accurate (Sieyes' "What is the Third Estate?" is the most famous work [1]). Though it's contribution to the origins of the Revolution is the matter of some debate [2].
Thanks this is a great nit pick :) My knowledge on this topic is hazy at best so I jumped to the most famous populist screed writer of the french revolution.