diff --git a/README.md b/README.md
index 37fd801..b9db24f 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 * [x] 2021Q2: ~Version control methodology~
 * 2021Q3: Decide on sections
   * [ ] ~~Python section~~ Sections by Project Phase (setup, develop, deploy, deliver) each section should cover the same topics (i.e version control, DevOps)
-  * [ ] Move as much as possible from [Topic Hierarchy](#Topic-Hierarchy) into phases
+  * [ ] Move as much as possible from _Topic Hierarchy_ into phases
 * 2021Q4
   * [ ] Refine github flows
   * [ ] Add sub-pages
@@ -198,6 +198,8 @@ Path('.').absolute()
   * Closed Source Software: If you cannot check what it does / how it works, do not use it for the sake of security.
   * [Software Design X Dieter Rams](https://github.com/zedr/dieter-rams-10-applied-to-software)
 * **Collaboration / Working in a team**
+  * [SPACE (satification, performance, activity, communication, efficiency)](https://queue.acm.org/detail.cfm?id=3454124)
+  * [Google's Four DevOp KPIs](https://cloud.google.com/blog/products/devops-sre/using-the-four-keys-to-measure-your-devops-performance)
   * Details about [pair programming](https://martinfowler.com/articles/on-pair-programming.html)
   * Is [extreme programming](http://www.extremeprogramming.org/) a thing?
   * Collaboration (tools: [csvbox](https://csvbox.io/), [pyodide](https://github.com/pyodide/pyodide))