Add Tasha's instructor bio and embed CryoCloud setup steps (#20)

* add tasha

* expand cryocloud onb text

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Slightly less scary language

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Matt Fisher <[email protected]>

Author: 3 people

00-instructors.md

@@ -34,3 +34,11 @@ Dr. Wu’s research focuses on geospatial data science and open-source software
 **Founder @ [VorGeo](https://www.vorgeo.com/)**
 
 Dr. Tyler Erickson is the founder of the geospatial consultancy VorGeo, a Technical Fellow at non-profit [Radiant Earth](https://radiant.earth/), and a founding editorial board member of the [Cloud-Native Geospatial Forum](https://cloudnativegeo.org/). Previously he led the developer relations team for [Google Earth Engine](https://earthengine.google.com/). Dr. Erickson's work focuses on building communities & ecosystems around emerging technologies, with an emphasis on technologies that can be leveraged by environmental sustainability projects.
+
+## [Tasha Snow](https://tsnow03.github.io)
+
+**Research Scientist @ [NASA Goddard Space Flight Center (GSFC) / Earth System Science Interdisciplinary Center (ESSIC), University of Maryland](https://essic.umd.edu/)** \
+**Co-Founder @ [CryoCloud](https://cryointhecloud.com)**
+
+I am one of the leads of the CryoCloud community meant to help geoscientist transition to cloud computing, which revolves around a JupyterHub cloud computing platform. I provide training, maintain our environments, and develop data workflows that are idealized for geoscience work in the cloud.
+I'm also a research scientist in the Cryospheric Sciences Lab at NASA GSFC and ESSIC. My research foci are glaciology, oceanography, cloud computing, and open science.

01-prerequisites.md

@@ -19,9 +19,15 @@ Please [sign up for a GitHub account](https://github.com/signup) if you haven't
 
 ## Complete the CryoCloud onboarding process
 
-Follow the
-[CryoCloud "getting started" documentation](https://book.cryointhecloud.com/getting-started)
-to gain access to CryoCloud.
+1. Fill out this short [Getting Started Survey](https://forms.gle/d8oP1gp9YikS2ixM8) to give us the
+required information to get you on the hub.
+
+
+2. Once we have your survey, within the next day or two we will invite you to the CryoCloud GitHub organization and CryoCloudUsers team (you will receive an email when we do this from GitHub **at the email you have linked to your GitHub profile**). Please accept this invitation within 7 days or it will disappear and we will need to resend it. Your membership on that GitHub team provides you with access to the CryoCloud hub.
+
+
+3. Open up the [CryoCloud JupyterHub](https://hub.cryointhecloud.com) to make sure it works for you.
+You will need your Github username and password to sign on. A 404 error message means you are not yet part of the GitHub org and need to accept the invitation from GitHub first.
 
 
 ### ⚠️ Critical: Accept the invitation to join the CryoCloud team