Added version, updated README with features

Author: shadowy-pycoder

README.md

@@ -8,6 +8,14 @@
 ![GitHub Downloads (all assets, all releases)](https://img.shields.io/github/downloads/shadowy-pycoder/goso/total)
 
 
+## Features
+
+- Syntax highlighting 
+- Fast search
+- Easy to use
+- Support for Linux, Windows, macOS
+
+
 ## Demo
 
 ![goso - Animated gif demo](demo/demo.gif)
@@ -94,13 +102,14 @@ Usage: goso [OPTIONS] QUERY
 Options:
   -h    Show this help message and exit.
   -a int
-        The maximum number of answers for each result [min=1, max=10] (default 1)
+        The number of answers for each result [min=1, max=10] (default 3)
   -l string
         The name of Chroma lexer. See https://github.com/alecthomas/chroma/tree/master/lexers/embedded (default "bash")
   -q int
-        The number of results [min=1, max=10] (default 1)
+        The number of questions [min=1, max=10] (default 10)
   -s string
         The name of Chroma style. See https://xyproto.github.io/splash/docs/ (default "onedark")
+  -v    print version
 ``` 
 
 It is possible to adjust default values for the number of questions and answers, lexer and style.

cmd/goso/cli.go

@@ -87,6 +87,11 @@ func root(args []string) error {
 	flags.StringVar(&conf.Style, "s", style, "The name of Chroma style. See https://xyproto.github.io/splash/docs/")
 	qNum := flags.Int("q", qn, "The number of questions [min=1, max=10]")
 	aNum := flags.Int("a", an, "The number of answers for each result [min=1, max=10]")
+	flags.BoolFunc("v", "print version", func(flagValue string) error {
+		fmt.Println(app, goso.Version)
+		os.Exit(0)
+		return nil
+	})
 
 	flags.Usage = func() {
 		fmt.Print(usagePrefix)

version.go

@@ -0,0 +1,3 @@
+package goso
+
+var Version string = "v0.0.3"