README: Format, godoc link

README.md

@@ -1,18 +1,22 @@
-semver for golang [![Build Status](https://drone.io/github.com/blang/semver/status.png)](https://drone.io/github.com/blang/semver/latest)
+semver for golang [![Build Status](https://drone.io/github.com/blang/semver/status.png)](https://drone.io/github.com/blang/semver/latest) [![GoDoc](https://godoc.org/github.com/blang/semver?status.png)](https://godoc.org/github.com/blang/semver)
 ======
 
 semver is a Semantic Versioning library written in golang. It fully covers spec version `2.0.0`.
 
 Usage
 -----
+```bash
+$ go get github.com/blang/semver
+```
 
-    $ go get github.com/blang/semver
-
-    import github.com/blang/semver
-    v1, err := semver.New("1.0.0-beta")
-    v2, err := semver.New("2.0.0-beta")
-    v1.Compare(v2)
+```go
+import github.com/blang/semver
+v1, err := semver.New("1.0.0-beta")
+v2, err := semver.New("2.0.0-beta")
+v1.Compare(v2)
+```
 
+Also check the [GoDocs](http://godoc.org/github.com/blang/semver).
 
 Why should I use this lib?
 -----
@@ -40,57 +44,58 @@ Example
 
 Have a look at full examples in [examples/main.go](examples/main.go)
 
-    import github.com/blang/semver
-
-    v, err := semver.New("0.0.1-alpha.preview+123.github")
-    fmt.Printf("Major: %d\n", v.Major)
-    fmt.Printf("Minor: %d\n", v.Minor)
-    fmt.Printf("Patch: %d\n", v.Patch)
-    fmt.Printf("Pre: %s\n", v.Pre)
-    fmt.Printf("Build: %s\n", v.Build)
-
-    // Prerelease versions array
-    if len(v.Pre) > 0 {
-        fmt.Println("Prerelease versions:")
-        for i, pre := range v.Pre {
-            fmt.Printf("%d: %q\n", i, pre)
-        }
-    }
-
-    // Build meta data array
-    if len(v.Build) > 0 {
-        fmt.Println("Build meta data:")
-        for i, build := range v.Build {
-            fmt.Printf("%d: %q\n", i, build)
-        }
+```go
+import github.com/blang/semver
+
+v, err := semver.New("0.0.1-alpha.preview+123.github")
+fmt.Printf("Major: %d\n", v.Major)
+fmt.Printf("Minor: %d\n", v.Minor)
+fmt.Printf("Patch: %d\n", v.Patch)
+fmt.Printf("Pre: %s\n", v.Pre)
+fmt.Printf("Build: %s\n", v.Build)
+
+// Prerelease versions array
+if len(v.Pre) > 0 {
+    fmt.Println("Prerelease versions:")
+    for i, pre := range v.Pre {
+        fmt.Printf("%d: %q\n", i, pre)
     }
+}
 
-    v001, err := semver.New("0.0.1")
-    // Compare using helpers: v.GT(v2), v.LT, v.GTE, v.LTE
-    v001.GT(v) == true
-    v.LT(v001) == true
-    v.GTE(v) == true
-    v.LTE(v) == true
-
-    // Or use v.Compare(v2) for comparisons (-1, 0, 1):
-    v001.Compare(v) == 1
-    v.Compare(v001) == -1
-    v.Compare(v) == 0
-
-    // Manipulate Version in place:
-    v.Pre[0], err = semver.NewPRVersion("beta")
-    if err != nil {
-        fmt.Printf("Error parsing pre release version: %q", err)
+// Build meta data array
+if len(v.Build) > 0 {
+    fmt.Println("Build meta data:")
+    for i, build := range v.Build {
+        fmt.Printf("%d: %q\n", i, build)
     }
-
-    fmt.Println("\nValidate versions:")
-    v.Build[0] = "?"
-
-    err = v.Validate()
-    if err != nil {
-        fmt.Printf("Validation failed: %s\n", err)
-    }
-
+}
+
+v001, err := semver.New("0.0.1")
+// Compare using helpers: v.GT(v2), v.LT, v.GTE, v.LTE
+v001.GT(v) == true
+v.LT(v001) == true
+v.GTE(v) == true
+v.LTE(v) == true
+
+// Or use v.Compare(v2) for comparisons (-1, 0, 1):
+v001.Compare(v) == 1
+v.Compare(v001) == -1
+v.Compare(v) == 0
+
+// Manipulate Version in place:
+v.Pre[0], err = semver.NewPRVersion("beta")
+if err != nil {
+    fmt.Printf("Error parsing pre release version: %q", err)
+}
+
+fmt.Println("\nValidate versions:")
+v.Build[0] = "?"
+
+err = v.Validate()
+if err != nil {
+    fmt.Printf("Validation failed: %s\n", err)
+}
+```
 
 Benchmarks
 -----