fixed broken links

Author: RobJY

docs/hpc/06_tools_and_software/04_conda_environments.mdx

@@ -24,7 +24,7 @@ However, Conda has a significantly larger number of pre-compiled packages.
 
 ### Disadvantages
 
--   Conda does not take advantage of packages already installed in the system (while [virtualenv and venv](./02_python_packages_with_virtual_environments.md) do)
+-   Conda does not take advantage of packages already installed in the system (while [virtualenv and venv](./02_python_packages_with_virtual_environments.mdx) do)
 -   As you will see below, you may need to do additional steps to keep track of all installed packages (including those installed by pip and/or install.packages)
 
 ::::warning[Automatic deletion of your files]
@@ -241,7 +241,7 @@ The command `conda list --export` will not include packages installed by `instal
 
 #### `renv`
 
-Please see details of using `renv` with conda for reproducibilty on [R packages with `renv`](./03_r_packages_with_renv.md).
+Please see details of using `renv` with conda for reproducibilty on [R packages with `renv`](./03_r_packages_with_renv.mdx).
 
 ## Use conda env in a batch script
 The part of the batch script that will call the command should look like: