HERMESv3_GR: release announcement

[lizadams]

Hi Marc,

I’ve added a new emissions category. Please review this link that contains instructions about using this category. I will set up a HERMESv3_GR sub-category as well.

About the Emissions category

This category may be used to announce the availability of open-source software to prepare CMAQ-Ready emissions and issues related to using this software. Use this category to announce the availability of the open-source software to the community. Request that a sub-category be created that references the name of the open-source software. For issues related to running this open-source software, users are asked to include both the Emissions Category, and the open-source software sub-category. T…

Thanks, Liz