Added function synopses to README.rst

README.rst

@@ -4,8 +4,8 @@ scorr
 Fast two- and three-point correlation analysis for time series
 using spectral methods.
 
-The methods are FFT-based for optimal performance and offer many options for 
-normalisation, mean removal, averaging, and zero-padding. In particular, 
+The calculations are FFT-based for optimal performance and offer many options 
+for normalisation, mean removal, averaging, and zero-padding. In particular, 
 averaging over pandas groups of different sizes (e.g. different days) is 
 supported.
 
@@ -16,6 +16,30 @@ The algorithms to calculate three-point correlations described in:
     Journal of Statistical Mechanics (2017)
     Preprint at arXiv:1706.04163
 
+
+======================  ======================================================
+Command                 Synopsis
+======================  ======================================================
+acorr                   Calculate autocorrelation or autocovariance
+acorr_grouped_df        Calculate acorr for pandas groups and average
+corr_mat                Convert correlation vector to matrix
+fft2x                   Calculate cross-bispectrum
+fftcrop                 Return cropped fft or correlation
+get_nfft                Find a good FFT segment size for pandas groups of 
+                        different sizes 
+padded_x3corr_norm      Normalise and debias three-point cross-correlations
+padded_xcorr_norm       Normalise and debias two-point cross-correlations
+x3corr                  Calculate three-point cross-correlation matrix
+x3corr_grouped_df       Calculate x3corr for pandas groups and average
+xcorr                   Calculate two-point cross-correlation or covariance
+xcorr_grouped_df        Calculate xcorr for pandas groups and average
+xcorrshift              Convert xcorr output so lag zero is centered
+======================  ======================================================
+
+
+Please find further explanations in the docstrings and in the examples 
+directory.
+
 
 Installation
 ------------