Merge pull request #400 from nialov/docs-extend-conda-installation

Extend conda installation guidace in README.md

Author: nmaarnio

README.md

@@ -48,6 +48,10 @@ pip install eis_toolkit
 
 ```console
 conda install -c conda-forge eis_toolkit
+# On Windows, tensorflow must be installed from the anaconda channel
+# Consequently, channel priority must be flexible, which can be explicitly
+# done using --no-channel-priority
+conda install -c conda-forge eis_toolkit --no-channel-priority
 ```
 
 A Python wheel can be downloaded also from the [releases page](https://github.com/GispoCoding/eis_toolkit/releases) of this GitHub repository.