Update README.md

doc/jupyter/Demo/README.md

@@ -30,4 +30,4 @@ The notebooks listed below contain command line examples that can be copied from
 - [Demo 4](https://github.com/PCMDI/pcmdi_metrics/blob/main/doc/jupyter/Demo/Demo_4_modes_of_variability.ipynb): Install scipy and eofs in the kernel environment, run the modes of variability driver with the NAM, and view an output image.
 - [Demo 5](https://github.com/PCMDI/pcmdi_metrics/blob/main/doc/jupyter/Demo/Demo_5_mjo_metrics.ipynb): Run the MJO driver with options and view an output image.
 - [Demo 6](https://github.com/PCMDI/pcmdi_metrics/blob/main/doc/jupyter/Demo/Demo_6_ENSO.ipynb): Demonstrates how to run the three metrics collections in the ENSO metrics package.
-- [Demo 7](https://github.com/PCMDI/pcmdi_metrics/blob/main/doc/jupyter/Demo/Demo_7_precip_variability.iynb): Run metric for precipitation variability across time scales.
+- [Demo 7](https://github.com/PCMDI/pcmdi_metrics/blob/main/doc/jupyter/Demo/Demo_7_precip_variability.ipynb): Run metric for precipitation variability across time scales.