Adding index.rst and updating the README.md

README.md

@@ -1,5 +1,7 @@
 # Heron
 
+A more thorough description of both why Heron exists in the first place and how to use it (before the advent of a full manual) can be found in [this document](https://medium.com/@gdimitri/heron-a-hybrid-approach-to-data-pipelines-in-python-aa7719fe8f2e).
+
 ## Introduction
 
 Heron is a Python only graphical editor designed to initiate, connect and orchestrate multiple processes, potentially running on multiple computers. Each process is graphically represented as a node with inputs and outputs. Connecting an output of one process to the input of another will result in the data generated by the output process to be passed to the input one, subsequently triggering the input processes functionality.
@@ -31,18 +33,17 @@ pyzmq >= 22.x
 
 numpy
 
-dearpygui = 0.8.xx
-
-opencv = 4.x (3.x should work but not tested)
+dearpygui = 1.1
 
 paramikro (required if the multiple computers fuctionality is utilised)
 
-pynput (for the user input nodes)
+For using the in-Node visualisation capabilities and for a good few Nodes (Visualiser, Cameras, OpenCV filters) opencv = 4.x is required (3.x should work but not tested). Heron by itself will run without it but those Nodes and any in-Node visualisation won't.
+
+Other libraries are used in specific Nodes as needs be but one can check the import statements of the Worker scripts of the specific Operations.
+
 
-diskarray (for the save numpy node)
 
-If you use conda then dearpygui and diskarray have to be installed by pip (no conda packages yet). 
-Trying to install diskarray will try to install numpy (on top of the conda install numpy). Do not do that! First "pip install basescript" (a diskarray requirement) and then "pip install diskarray --no-dependencies" which will install only diskarray.
+If you use conda then dearpygui has to be installed by pip (no conda packages yet). 
 
 
 ## Use