Print application/json files with chroma by default

Fix #34.

Makefile

@@ -32,6 +32,11 @@ test: pistol
 	@echo mimetype + sh:
 	@echo -------------------
 	@./pistol --config tests/config tests/mimetype-with-sh
+	@tput sgr0
+	@echo -------------------
+	@echo application/json \(issue '#'34\):
+	@echo -------------------
+	@./pistol --config tests/config tests/34.json
 
 deps:
 	go get github.com/c4milo/github-release

internal_writers/map.go

@@ -7,6 +7,8 @@ import (
 
 var internalWritersRegexMap = map[string] func(string, string) (func(w io.Writer) error, error) {
 	"text/*": NewChromaWriter,
+	// https://github.com/doronbehar/pistol/issues/34
+	"application/json": NewChromaWriter,
 	"application/zip": NewArchiveLister,
 	"application/x-rar-compressed": NewArchiveLister,
 	"application/x-tar": NewArchiveLister,

renovate.json

@@ -0,0 +1,5 @@
+{
+  "extends": [
+    "config:base"
+  ]
+}

tests/34.json

@@ -0,0 +1,3 @@
+{
+	"text": "A JSON file should be printed with JSON chroma syntax highlighting"
+}