Update NEWS.md

NEWS.md

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 # News
 
+## v0.4.0
+- register the repository on [zenodo.org](https://zenodo.org/)
+- add a .JuliaFormatter.toml file for the inbuilt vscode Julia extension formatter
 - rewrite of the cross-section functions in Julia, which means the whole setup is now in Julia [#34](https://github.com/egavazzi/AURORA.jl/pull/34)
 - add info to help debug segfault when calling Matlab [#33](https://github.com/egavazzi/AURORA.jl/pull/33)
 - use 'pymsis' and 'iri2016' python packages to get msis and iri data [#30](https://github.com/egavazzi/AURORA.jl/pull/30)
-- add a .JuliaFormatter.toml file for the inbuilt vscode Julia extension formatter
 - use half steps in height for A and B matrices in the CN [#28](https://github.com/egavazzi/AURORA.jl/pull/28)
 - make saving simulation data safer [#27](https://github.com/egavazzi/AURORA.jl/pull/27)
 - add scripts to plot I and Q in Julia [#26](https://github.com/egavazzi/AURORA.jl/pull/26)