Added some descriptions to existing entries

bibtex.bib

@@ -327,6 +327,8 @@
   keywords={classic},
   url={https://books.google.co.uk/books?hl=en&lr=&id=TnqECgAAQBAJ&oi=fnd&pg=PP1&dq=andy+clark+surfing+uncertainty&ots=aurm4jE3NO&sig=KxeHGJ6YJJdN9tKyr6snwDyBBKg&redir_esc=y#v=onepage&q=andy%20clark%20surfing%20uncertainty&f=false}
 }
+
+@String(friston2013life="A heuristic demonstration of the concept that Karl will later refer to as 'Bayesian mechanics', this paper surveys the notion that any random dynamical systems with the right kind of coupling between its internal sub-systems, will naturally appear as if its performing a kind of approximate Bayesian inference. This argument is motivated by appeal to the existence of a non-equilibrium steady-state density, to which the system's probability distribution evolves."}
 @article{friston2013life,
   title={Life as we know it},
   author={Friston, Karl},
@@ -407,6 +409,8 @@
   keywords={self-organisation},
   url={https://www.biorxiv.org/content/10.1101/227181v1.abstract}
 }
+
+@String(parr2020markov="This paper gives succinct and schematic treatments of several of the main concepts explored in a Free Energy Principle for a Particular Physics, particularly those related to Bayesian mechanics and information geometry. This work importantly delineates some of the conditions required a system, so that itsinternal states approximately parameterise beliefs about external states. Fluctuation theorems are also invoked to relate the probability of trajectories or sequences of states to existing concepts in the active inference world, such as information gain, risk, and ambiguity resolution."}
 @article{parr2020markov,
   title={Markov blankets, information geometry and stochastic thermodynamics},
   author={Parr, Thomas and Da Costa, Lancelot and Friston, Karl},