Added a few dummies, clipped README and added to Contribute

docs/mediums/platform.md

@@ -0,0 +1,27 @@
+# Platform
+
+SUMMARY
+
+<!--
+As in, party platforms, clarifying what a party stands for
+
+See also solidarity
+-->
+
+## History
+
+## Feedback loops
+
+### Sensitivities
+
+### Oversights
+
+## Implementations
+
+### Communities
+
+### Tools
+
+## Bibliography
+
+## Further reading

docs/mediums/proportional_representation.md

@@ -0,0 +1,24 @@
+# Proportional representation
+
+SUMMARY
+
+<!--
+-->
+
+## History
+
+## Feedback loops
+
+### Sensitivities
+
+### Oversights
+
+## Implementations
+
+### Communities
+
+### Tools
+
+## Bibliography
+
+## Further reading

docs/mediums/solidarity.md

@@ -0,0 +1,24 @@
+# Solidarity
+
+<!--
+* Workers organizations
+* Party whips, enforcing party discipline
+-->
+
+## History
+
+## Feedback loops
+
+### Sensitivities
+
+### Oversights
+
+## Implementations
+
+### Communities
+
+### Tools
+
+## Bibliography
+
+## Further reading