Fix typos

slides.qmd

@@ -141,9 +141,9 @@ author:
   mamba activate my_env
   mamba install matplotlib numpy scipy eccodes
   ```
-* Some packages might only be installable via `pip`: ^[Always un `pip` last] ^[Use the correct `pip`]
+* Some packages might only be installable via `pip`: ^[Always use `pip` last] ^[Use the correct `pip`]
   ```{raw}
-  python -m pip install gribscan
+  python3 -m pip install gribscan
   ```
 
 # Recreating an environment