version bump, and added explaintion of file_input

Cargo.toml

@@ -3,7 +3,7 @@
 # found in the LICENCE-{APACHE, MIT} file.
 [package]
 name = "tokei"
-version = "2.0.0"
+version = "2.1.0"
 authors = ["Aaronepower <theaaronepower@gmail.com>"]
 repository = "https://github.com/Aaronepower/tokei.git"
 homepage = "https://aaronepower.github.io/tokei/"

cli.yml

@@ -5,7 +5,7 @@ about: Count Code, Quickly.
 author: Aaron P. <theaaronepower@gmail.com>
 bin_name: Tokei
 name: Tokei
-version: 2.0.0
+version: 2.1.0
 args:
     - exclude:
         help: Ignore all files & directories containing the word
@@ -18,7 +18,7 @@ args:
         short: f
         takes_value: false
     - file_input:
-        help: "Gives statistics from a previous tokei run."
+        help: "Gives statistics from a previous tokei run. Can be given a file path, or \"stdin\" to read from stdin" 
         long: input
         short: i
         takes_value: true
@@ -46,4 +46,4 @@ args:
         long: sort
         possible_values: [files, total, blanks, code, commments]
         short: s
-        takes_value: true
+        takes_value: true