Create Dev Onboarding

Hi there! Creating this template to aid in the onboarding of new devs to the team.

.github/ISSUE_TEMPLATE/Dev Onboarding

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+---
+name: Dev Onboarding Template
+about: This issue has been created for our new Devs to familiarize themselves with CTJ project and set-up their dev environment. 
+title: 'Dev Onboarding: [replace with your Name] '
+labels: 'milestone missing, role missing, feature: Onboarding, size: 0.5pt'
+assignees: ''
+
+---
+
+### Overview
+This issue has been created for our new Developer [PLEASE ADD WHETHER FRONT-END OR BACK-END] to to familiarize themselves with CTJ project and set-up their dev environment. 
+
+### Action Items
+- [ ] Review [Read Me Page](https://github.com/hackforla/CivicTechJobs)
+- [ ] Review [Mk Docs Project Documentation](https://hackforla.github.io/CivicTechJobs/) - please note we are working on updating this
+- [ ] Review [Wiki Onboarding [Start Here]](https://github.com/hackforla/CivicTechJobs/wiki/Onboarding-%5BStart-Here%5D)
+- [ ] Follow this to [install the required downloads and set up a dev.env file for the  main] (https://hackforla.github.io/CivicTechJobs/developer/installation/) - please note it's slightly outdated):
+- [ ] Follow the steps outlined [here](https://docs.google.com/document/d/1v_81bQXrad7Tg-_0CBjhr6FKkn-q0xNpc_NKcWASvdU/edit?usp=sharing) to set up a dev environment for the develop branch:
+
+### Resources
+
+