week 3: presentation proposal (#2422)

* week 2: demo proposal

* week 2: demo proposal

* week 3: presentation proposal

* merge

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Co-authored-by: kthfre <[email protected]>

contributions/presentation/week3/mqnguyen-golman/README.md

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+# Assignment Proposal
+
+## Title
+
+Rainbow deployments and its role in modern CD
+
+## Names and KTH ID
+
+  - Minh Quang Nguyen ([email protected])
+  - Fredrik Gölman ([email protected])
+
+## Deadline
+- Week 3
+
+## Category
+- Presentation
+
+## Description
+
+A brief introduction of the problem it attempts to solve when deploying new software versions. We would try to briefly cover previous (or "lesser") relevant similar methodologies such as blue/green deployment and discuss some limitations that motivate the extension, which is rainbow deployment. Such limitations may include multiple backend services serving an application or running long-term jobs that may not be interrupted blocking deployment of new versions, both cases advocating the need for more colors.
+
+**Relevance**
+
+We believe it's relevant to DevOps in general and in particular to the subject of week 3 as it deals with continuous deployment. We also believe no one has covered it previously in the course, although there is some coverage of blue/green deployment.