Clarify documentation regarding indentation / newline
diff --git a/include/json/writer.h b/include/json/writer.h
index 9e7adde..35ec396 100644
--- a/include/json/writer.h
+++ b/include/json/writer.h
@@ -93,7 +93,8 @@
/** Configuration of this builder.
Available settings (case-sensitive):
- "commentStyle": "None" or "All"
- - "indentation": "<anything>"
+ - "indentation": "<anything>".
+ - Setting this to an empty string also omits newline characters.
- "enableYAMLCompatibility": false or true
- slightly change the whitespace around colons
- "dropNullPlaceholders": false or true