update README

README.md

@@ -6,15 +6,6 @@
 
 Sleipnir.jl is the core package of [ODINN.jl](https://github.com/ODINN-SciML/ODINN.jl), containing all the basic data structures to manage glacier and climate data, as well as multiple types of numerical simulations and parameters.
 
-## Important information 
+## Data preprocessing
 
-- Sleipnir CI and installation currenlty works just in MacOS machines. We are working in having a version that also works in Ubuntu. 
-
-## Installation and SSL compatibility
-
-Sleipnir.jl (and all the libraries in ODINN.jl) use Python dependencies that are handled by CondaPkg. 
-In order to these dependencies to work in harmony with the Julia package dependencies, we need to set the SSL version inside the Julia session. 
-This is done internally using `PreferenceTools`, where we manually set `openssl_version=3.4.0` inside CondaPkg. 
-This configuration is likely to change (and potentially fail) in the future as new releases of dependencies force 
-to bump the SSL version. 
-The first time you compile Sleipir, this will install the new conda package in `.CondaPkg/`.
+As of version 0.7.1, OGGM data are now preprocessed with [Gungnir](https://github.com/ODINN-SciML/Gungnir). These preprocessed data are saved on a server and Sleipnir downloads them during the first execution on a machine. They are then stored locally in `~/.ODINN/ODINN_prepro/` for the subsequent executions.