Added some more examples to README + version to jitic

README.md

@@ -4,7 +4,29 @@
 
 ## Usage
 
-TODO
+```
+Usage of ./jitic:
+  -pass="": JIRA Password.
+  -stdin=false: Set to true if you want to get "-tickets" from stdin instead of an argument.
+  -tickets="": Message to retrieve the tickets from.
+  -url="": JIRA instance URL.
+  -user="": JIRA Username.
+  -version=false: Outputs the version number and exits.
+```
+
+### Examples
+
+Check if ticket *WEB-22861* exists in *https://jira.example.org/* from parameter.
+
+```bash
+./jitic -url="https://jira.example.org/" -user="JIRA-API" -pass="SECRET-PASSWORD" -tickets="This is my commit message for this awesome feature: WEB-22861 remove authentication prod build for now"
+```
+
+Check if ticket *WEB-22861* exists in *https://jira.example.org/* from stdin.
+
+```bash
+echo "This is my commit message for this awesome feature: WEB-22861 remove authentication prod build for now" | ./jitic -url="https://jira.example.org/" -user="JIRA-API" -pass="SECRET-PASSWORD" -stdin
+```
 
 ## Use cases
 
@@ -40,7 +62,7 @@ exit 0
 
 ### Git "pre-receive" hook
 
-See [Customizing Git - Git Hooks](https://git-scm.com/book/it/v2/Customizing-Git-Git-Hooks).
+See [Customizing Git - Git Hooks](https://git-scm.com/book/it/v2/Customizing-Git-Git-Hooks) and [A reasonable git pre-receive-hook](https://gist.github.com/caniszczyk/1327469).
 
 How a pre-receive hook can look like:
 ```sh

main.go

@@ -3,23 +3,37 @@ package main
 import (
 	"bufio"
 	"flag"
+	"fmt"
 	"github.com/andygrunwald/jitic/jira"
 	"log"
 	"net/url"
 	"os"
 	"regexp"
 )
 
+const (
+	majorVersion = 0
+	minorVersion = 0
+	patchVersion = 1
+)
+
 func main() {
 	var (
 		jiraURL       = flag.String("url", "", "JIRA instance URL.")
 		jiraUsername  = flag.String("user", "", "JIRA Username.")
 		jiraPassword  = flag.String("pass", "", "JIRA Password.")
 		ticketMessage = flag.String("tickets", "", "Message to retrieve the tickets from.")
 		inputStdin    = flag.Bool("stdin", false, "Set to true if you want to get \"-tickets\" from stdin instead of an argument.")
+		flagVersion   = flag.Bool("version", false, "Outputs the version number and exits.")
 	)
 	flag.Parse()
 
+	// Output the version and exit
+	if *flagVersion {
+		fmt.Printf("jitic v%d.%d.%d\n", majorVersion, minorVersion, patchVersion)
+		return
+	}
+
 	// Collect all ticket keys
 	var tickets []string
 	if len(*ticketMessage) > 0 {