Correctly set default features to feature names

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "simple_logger"
-version = "1.15.0"
+version = "1.15.1"
 license = "MIT"
 authors = ["Sam Clements <[email protected]>"]
 description = "A logger that prints all messages with a readable output format"
@@ -8,7 +8,7 @@ repository = "https://github.com/borntyping/rust-simple_logger"
 edition = "2018"
 
 [features]
-default = ["colored", "timestamps"]
+default = ["colors", "timestamps"]
 colors = ["colored"]
 threads = []
 timestamps = ["time"]