Standardize readme

README.md

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+# For the paper:
+
+Diesmann M, Gewaltig MO, Aertsen A (1999) Conditions for stable 
+propagation of synchronous spiking in cortical neural networks. 
+*Nature* 402:529-533
+
+## Abstract
+
+The classical view of neural coding has emphasized the importance of 
+information carried by the rate at which neurons discharge action 
+potentials. More recent proposals that information may be carried by 
+precise spike timing have been challenged by the assumption that these 
+neurons operate in a noisy fashion—presumably reflecting fluctuations 
+in synaptic input and, thus, incapable of transmitting signals with 
+millisecond fidelity. Here we show that precisely synchronized action 
+potentials can propagate within a model of cortical network activity 
+that recapitulates many of the features of biological systems. An 
+attractor, yielding a stable spiking precision in the (sub)millisecond 
+range, governs the dynamics of synchronization. Our results indicate 
+that a combinatorial neural code, based on rapid associations of 
+groups of neurons co-ordinating their activity at the single spike 
+level, is possible within a cortical-like network.
+
+Brian simulator models are available at this web page: 
+
+[http://briansimulator.org/docs/examples-frompapers_Diesmann_et_al_1999.html](http://briansimulator.org/docs/examples-frompapers_Diesmann_et_al_1999.html)  
+
+and here is a similar but longer one with functions and a class 
+definition: 
+
+[http://briansimulator.org/docs/examples-frompapers_Diesmann_et_al_1999_longer.html](http://briansimulator.org/docs/examples-frompapers_Diesmann_et_al_1999_longer.html)
+
+The simulation generates an image similar to Fig. 1d in the paper, 
+albeit at a faster synaptic delay than the papers 5ms one: 
+
+![screenshot](./screenshot.png)
+
+If n is reduced to 48 on line 18 (the PulsePacket line) a figure 
+similar to 1e is produced: 
+
+![screenshot2](./screenshot2.png)
+
+This simulation requires Brian which can be downloaded and installed  
+from the instructions available at [http://www.briansimulator.org/](http://www.briansimulator.org/)
+
+For support on installing and using Brian simulations there is a  
+support group at [https://groups.google.com/group/briansupport](https://groups.google.com/group/briansupport).
+
+---
+
+2025-07-09: Converted README to Markdown.