Simplify and add documentation

plugins/conda-env/README.md

@@ -7,12 +7,38 @@ To use it, add `conda-env` to the plugins array of your zshrc file:
 plugins=(... conda-env)
 ```
 
-The plugin creates a `conda_prompt_info` function that you can use in your
-theme, which displays the basename of the current `$CONDA_DEFAULT_ENV`. It uses
-two variables to control how that is shown:
+The plugin creates a `conda_prompt_info` function that you can use in your theme, which displays the
+basename of the current `$CONDA_DEFAULT_ENV`.
+
+You can use this prompt function in your themes, by adding it to the `PROMPT` or `RPROMPT` variables. See [Example](#example) for more information.
+
+## Settings
+
+It uses two variables to control how the information is shown:
 
 - `ZSH_THEME_CONDA_PREFIX`: sets the prefix of the CONDA_DEFAULT_ENV.
 Defaults to `[`.
 
 - `ZSH_THEME_CONDA_SUFFIX`: sets the suffix of the CONDA_DEFAULT_ENV.
 Defaults to `]`.
+
+## Example
+
+```sh
+ZSH_THEME_CONDA_PREFIX='conda:%F{green}'
+ZSH_THEME_CONDA_SUFFIX='%f'
+RPROMPT='$(conda_prompt_info)'
+```
+
+## `CONDA_CHANGEPS1`
+
+This plugin also automatically sets the `CONDA_CHANGEPS1` variable to `false` to avoid conda changing the prompt
+automatically. This has the same effect as running `conda config --set changeps1 false`.
+
+You can override this behavior by adding `unset CONDA_CHANGEPS1` in your `.zshrc` file, after Oh My Zsh has been
+sourced.
+
+References:
+
+- https://conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html#determining-your-current-environment
+- https://conda.io/projects/conda/en/latest/user-guide/configuration/use-condarc.html#precedence