update readme

README.md

@@ -2,10 +2,28 @@
 
 ## Tomopy
 
+* https://tomopy.readthedocs.io/en/latest/ipynb/tomopy.html
+
+* gridrec reconstruction algorithm working
+
+  * assumes parallel beam (not cone-beam)
+  * ~10 minutes for reconstruction of 750 projections of 1.5k x 1.9k pixels
+  * jupyter notebook works for decimated data (x1/2, x1/4) but stalls on the full dataset, regular python is recommended for large datasets
+
+* visualization using [ipyvolume](https://ipyvolume.readthedocs.io/en/latest/) in jupyter notebook
+
+
 ![coil_tomopy_recon](images/coil_tomopy_recon.gif)
 
-### Gridrec
-* parallel beam
 
-### ASTRA toolbox
 
+To do:
+
+* cone-beam reconstruction
+
+  * [ASTRA toolbox](https://tomopy.readthedocs.io/en/latest/ipynb/astra.html) in tomopy
+  * or DIY
+
+* see if the reconstruction of the full data set is more reliable on a heftier workstation
+
+  * C14/Carbon?