FIX: Fix typo in env name in README.md

README.md

@@ -72,7 +72,7 @@ If you are interested in running this material locally on your computer, you wil
 1. Create and activate your conda environment from the `environment.yml` file
    ```bash
    conda env create -f environment.yml
-   conda activate esgf-cookbok-dev
+   conda activate esgf-cookbook-dev
    ```
 1. Move into the `notebooks` directory and start up Jupyterlab
    ```bash