Fix pretty logging and add a screenshot to the README

README.md

@@ -10,6 +10,8 @@ The uber's [zap](https://godoc.org/go.uber.org/zap) library pioneered this appro
 
 To keep the code base and the API simple, zerolog focuses on JSON logging only. Pretty logging on the console is made possible using the provided `zerolog.ConsoleWriter`.
 
+![](pretty.png)
+
 ## Features
 
 * Blazing fast

console.go

@@ -95,7 +95,7 @@ func colorize(s interface{}, color int, enabled bool) string {
 func levelColor(level string) int {
 	switch level {
 	case "debug":
-		return cGray
+		return cMagenta
 	case "info":
 		return cGreen
 	case "warn":
@@ -109,7 +109,7 @@ func levelColor(level string) int {
 
 func needsQuote(s string) bool {
 	for i := range s {
-		if s[i] < 0x20 || s[i] > 0x7e || s[i] == '\\' || s[i] == '"' {
+		if s[i] < 0x20 || s[i] > 0x7e || s[i] == ' ' || s[i] == '\\' || s[i] == '"' {
 			return true
 		}
 	}

log.go

@@ -167,6 +167,7 @@ func (l Logger) Output(w io.Writer) Logger {
 	l2 := New(w)
 	l2.level = l.level
 	l2.sample = l.sample
+	l2.context = make([]byte, len(l.context))
 	copy(l2.context, l.context)
 	return l2
 }