Fix broken links in README

- Contribution link
- Anchor to Economy & Household

README.md

@@ -9,7 +9,7 @@ Citybound is a city building game with a focus on realism, collaborative plannin
 
 # Citybound
 
-**This is a living and open document, find out [how to contribute your suggestions](../CONTRIBUTING.md).**
+**This is a living and open document, find out [how to contribute your suggestions](CONTRIBUTING.md).**
 
 Citybound is a city building game with a focus on realism, collaborative planning and simulation of microscopic details.
 
@@ -18,7 +18,7 @@ Citybound is a city building game with a focus on realism, collaborative plannin
 * Simulated World
   * [Simulation Core](#simulation-core)
   * [Transport](#transport)
-  * [Economy & Household Behaviour](#economy-&-household-behaviour)
+  * [Economy & Household Behaviour](#economy--household-behaviour)
   * ~~[Construction](construction/README.md)~~
   * [Environment](#environment)
 * Player Interaction