Change some hyperlinks in the instructions

[jzwart]

• usgsrc4cast-ci/dashboard/instructions.qmd

  Line 40 in 0457004

  More information about accessing the weather forecasts can be found [here]( https://projects.ecoforecast.org/neon4cast-docs/Shared-Forecast-Drivers.html)

  change to custom gefs4cast() functions https://raw.githubusercontent.com/eco4cast/usgsrc4cast-ci/prod/R/eco4cast-helpers/noaa_gefs.R
• provide an example for our own challenge rather than for neon4cast challenge

  usgsrc4cast-ci/dashboard/instructions.qmd

  Lines 50 to 51 in 0457004

  	We provide an [example GitHub](https://github.com/eco4cast/neon4cast-example) repository that can be used to automate your forecast with GitHub Actions.
  	It also includes the use of a custom Docker Container [eco4cast/rocker-neon4cast:latest](https://github.com/eco4cast/neon4cast-ci/blob/main/Dockerfile) that has many of the packages and functions needed to generate and submit forecasts.