Rename the option throughout the code

Signed-off-by: Nikita Nedvetskii <72229464+nedvna@users.noreply.github.com>

README.md

@@ -315,9 +315,6 @@ output: extended
 
 # Set a default receiver
 receiver: team-X-pager
-
-# Skip TLS certificate verification
-tls.insecure.skip.verify: true
 ```
 
 ### Routes

cli/root.go

@@ -33,11 +33,11 @@ import (
 )
 
 var (
-	verbose         bool
-	alertmanagerURL *url.URL
-	output          string
-	timeout         time.Duration
-	skipVerify      bool
+	verbose               bool
+	alertmanagerURL       *url.URL
+	output                string
+	timeout               time.Duration
+	tlsInsecureSkipVerify bool
 
 	configFiles = []string{os.ExpandEnv("$HOME/.config/amtool/config.yml"), "/etc/amtool/config.yml"}
 	legacyFlags = map[string]string{"comment_required": "require-comment"}
@@ -81,7 +81,7 @@ func NewAlertmanagerClient(amURL *url.URL) *client.Alertmanager {
 
 	cr := clientruntime.New(address, path.Join(amURL.Path, defaultAmApiv2path), schemes)
 
-	if skipVerify {
+	if tlsInsecureSkipVerify {
 		transport := http.Transport{
 			TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
 		}
@@ -163,7 +163,7 @@ static configuration:
 	date.format
 		Sets the output format for dates. Defaults to "2006-01-02 15:04:05 MST"
 
-	skip.verify
+	tls.insecure.skip.verify
 		Skips TLS certificate verification for all HTTPS requests.
 		Defaults to false.
 `