Add links to rOpenSci and pyOpenSci peer review

src/writing-code/create-packages.md

@@ -29,6 +29,11 @@ Other useful references include:
 - [Making your first R package](https://tinyheero.github.io/jekyll/update/2015/07/26/making-your-first-R-package.html) by Fong Chun Chan; and
 - [Writing an R package from scratch](https://r-mageddon.netlify.app/post/writing-an-r-package-from-scratch/) by Tomas Westlake.
 
+
+```admonish info
+rOpenSci offers [peer review of statistical software](https://stats-devguide.ropensci.org/).
+```
+
 ## Writing Python packages
 
 The [Python Packaging User Guide](https://packaging.python.org/en/latest/) provides a tutorial on [Packaging Python Projects](https://packaging.python.org/en/latest/tutorials/packaging-projects/).
@@ -40,6 +45,10 @@ Other useful references include:
 
 - This [example Python project](https://gitlab.unimelb.edu.au/rgmoss/example-python-project/) demonstrates one way of structuring a Python project as a package.
 
+```admonish info
+pyOpenSci offers [peer review of scientific software](https://www.pyopensci.org/software-peer-review/)
+```
+
 ## Writing Julia Packages
 
 The Julia's [package manager documentation](https://pkgdocs.julialang.org/dev/) provides a guide to [Creating Packages](https://pkgdocs.julialang.org/dev/creating-packages/)