Coding style

README.md

@@ -25,4 +25,27 @@ Command line options
 Contribution
 ============
 
-See CONTRIB.md
+If you'd like to contribute to Ethereum Go please fork, fix, commit and
+send a pull request. Commits who do not comply with the coding standards
+are ignored.
+
+Coding standards
+================
+
+Sources should be formatted according to the [Go Formatting
+Style](http://golang.org/doc/effective_go.html#formatting).
+
+Unless structs fields are supposed to be directly accesible, provide
+Getters and hide the fields through Go's exporting facility.
+
+Don't "overcomment", meaning that your and my mom doesn't have to read
+the source code.
+
+*wrong*
+
+```go
+// Check if the value at x is greater than y
+if x > y {
+    // It's greater!
+}
+```