diff --git a/docs/docs_test.go b/docs/docs_test.go
index a874556..166b33c 100644
--- a/docs/docs_test.go
+++ b/docs/docs_test.go
@@ -23,7 +23,7 @@ func testApp() *cli.App {
 			},
 			&cli.StringFlag{
 				Name:     "dummy-flag",
-				Usage:    "dummy flag desc",
+				Usage:    "Dummy flag desc.",
 				EnvVars:  []string{"PLUGIN_DUMMY_FLAG"},
 				Value:    "test",
 				Required: true,
@@ -104,7 +104,7 @@ func TestToData(t *testing.T) {
 				GlobalArgs: []*PluginArg{
 					{
 						Name:        "dummy_flag",
-						Description: "dummy flag desc",
+						Description: "Dummy flag desc.",
 						Default:     "\"test\"",
 						Type:        "string",
 						Required:    true,
diff --git a/docs/templates/markdown.md.tmpl b/docs/templates/markdown.md.tmpl
index 2ceb661..a704b42 100644
--- a/docs/templates/markdown.md.tmpl
+++ b/docs/templates/markdown.md.tmpl
@@ -1,7 +1,7 @@
 {{ with .Name }}# {{ . }}{{ end }}
 {{- with .Description }}
 
-{{ . }}
+{{ . | ToSentence }}
 {{- end }}
 {{- if .GlobalArgs }}
 
@@ -9,7 +9,7 @@
 {{ range $v := .GlobalArgs }}
 **_{{ $v.Name }}_**{{ with $v.Default }}{{ if $v.Required }} _required_{{ end }} (defaut: {{ . }}){{ end }}{{ if $v.Description }}{{ "\\" }}{{ end }}
 {{- with $v.Description }}
- {{ . }}
+ {{ . | ToSentence }}
 {{- end }}
 {{ end -}}
 {{ end -}}
diff --git a/docs/testdata/expected-doc-full.md b/docs/testdata/expected-doc-full.md
index 60c14ac..7326f34 100644
--- a/docs/testdata/expected-doc-full.md
+++ b/docs/testdata/expected-doc-full.md
@@ -1,19 +1,19 @@
 # test
 
-test description
+Test description.
 
 ## Parameters
 
 **_dummy_flag_** _required_ (defaut: "test")\
- dummy flag desc
+ Dummy flag desc.
 
 **_dummy_flag_int_** _required_ (defaut: 10)\
- dummy int flag desc
+ Dummy int flag desc.
 
 **_slice_flag_**\
- slice flag
+ Slice flag.
 
 **_x_simple_flag_**
 
 **_z_other_flag_**\
- other flag with desc
+ Other flag with desc.
diff --git a/template/functions.go b/template/functions.go
index 4c5b521..0aa44c9 100644
--- a/template/functions.go
+++ b/template/functions.go
@@ -1,14 +1,19 @@
 package template
 
 import (
+	"fmt"
 	"text/template"
+	"unicode"
+	"unicode/utf8"
 
 	"github.com/Masterminds/sprig/v3"
 )
 
 func LoadFuncMap() template.FuncMap {
 	sprigFuncs := sprig.GenericFuncMap()
-	customFuncs := template.FuncMap{}
+	customFuncs := template.FuncMap{
+		"ToSentence": ToSentence,
+	}
 
 	for name, f := range customFuncs {
 		if _, ok := sprigFuncs[name]; ok {
@@ -20,3 +25,28 @@ func LoadFuncMap() template.FuncMap {
 
 	return sprigFuncs
 }
+
+func ToSentence(s string) string {
+	if s == "" {
+		return ""
+	}
+
+	r, n := utf8.DecodeRuneInString(s)
+
+	closer := ""
+	if getLastRune(s, 1) != "." {
+		closer = "."
+	}
+
+	return fmt.Sprintf("%s%s%s", string(unicode.ToUpper(r)), s[n:], closer)
+}
+
+func getLastRune(s string, c int) string {
+	j := len(s)
+	for i := 0; i < c && j > 0; i++ {
+		_, size := utf8.DecodeLastRuneInString(s[:j])
+		j -= size
+	}
+
+	return s[j:]
+}