added README to the projects

projects/README

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+project_adaptation_fit
+OK 
+
+project_eod
+Needs to be checked!
+
+project_eyetracker
+OK
+
+project_fano_slope
+OK
+
+project_fano_test
+OK
+
+project_fano_time
+OK
+
+project_ficurves
+OK
+
+project_input_resistance
+What is the problem with this project?
+
+project_isicorrelations
+Need to program a solution!
+
+project_isipdffit
+Too technical
+
+project_lif
+OK
+
+project_mutualinfo
+OK
+
+project_noiseficurves
+OK
+
+project_numbers
+We might add some more involved statistical analysis
+
+project_pca_natural_images
+Needs PCA...
+
+project_photoreceptor
+OK - text needs to be improved
+Maybe also add how responses are influenced by unstable resting potential
+Maybe more cells...
+
+project_populationvector
+OK
+
+project_qvalues
+Interesting! But needs solution.
+
+project_random_walk
+Improve it! Provide code exmaples for plotting world and making movies
+
+project_serialcorrelation
+OK
+
+project_spectra
+Needs improvements and a solution
+
+project_stimulus_reconstruction
+OK Fix equation?
+
+project_vector_strength
+OK Maybe add something for explainiong the vector strength (average unit vector).