Update Contributors section with high-pri needs (#2110)

Author: rnystrom

README.md

@@ -13,6 +13,21 @@ GitHawk is the highest rated iOS app for GitHub.
 :zap: | Native markdown rendering
 :octocat: | 100% free and open source
 
+## Contributing
+
+We are always looking for contributions from **all skill levels**! A great way to get started is by helping [organize and/or squish bugs](https://github.com/GitHawkApp/GitHawk/projects/4).
+
+#### Highest Priority Needs:
+
+- 👩‍💼 **Product Manager**
+  - We have some [projects](https://github.com/GitHawkApp/GitHawk/projects) and tons of unorganized/unprioritized [features](https://github.com/GitHawkApp/GitHawk/issues?q=is%3Aissue+is%3Aopen+label%3Afeature). GitHawk needs someone to own the product direction!
+- 👩‍🎨 **Designer**
+  - Like making unique UIs? So do we! We value keeping GitHawk's UX close to core iOS, but, when necessary, create our own high-quality UI components. Helping design for GitHawk is a great opportunity to try new ideas out!
+- 👩‍💻 **iOS Project Management**
+  - There is a _lot_ of low-hanging fruit with our project setup, test and deployment automation, build optimizations, and more! I (@rnystrom) have no idea what I'm doing here. Come point us in the right direction!
+
+If you would like to test the latest changes, join the **TestFlight** beta by DMing your e-mail address to [@_ryannystrom](https://twitter.com/_ryannystrom).
+
 ## Installation
 
 If you want to build GitHawk locally, run `npm install`.
@@ -38,12 +53,6 @@ We ship GitHawk on the App Store for free and provide its entire source code for
 
 However, **please do not ship this app** under your own account. Paid or free.
 
-## Contributing
-
-:warning: This repo is moving _fast_! :warning:
-
-If you would like to test the latest changes, you can join the **TestFlight** beta by DMing your e-mail address to [@_ryannystrom](https://twitter.com/_ryannystrom).
-
 ## Why are we building this?
 
 - Push `IGListKit` + Swift to its limits