Fixed a typo on cmd/yarnc/login.go and the README files.

Signed-off-by: Aoi Koizumi <novaburst@kalli.st>

AUTHORS

@@ -2,6 +2,7 @@
 #   Name or Organization <email address>
 # The email address is not required for organizations.
 
+Aoi Koizumi <novaburst@kalli.st>
 D. Bohdan
 Daven Casia <davencasia@gmail.com>
 Gabriel Akinyosoye <gabrielfemi799@gmail.com>

README.md

@@ -149,7 +149,7 @@ Usage:
 Available Commands:
   completion  generate the autocompletion script for the specified shell
   help        Help about any command
-  login       Login and euthenticate to a Yarn.social pod
+  login       Login and authenticate to a Yarn.social pod
   post        Post a new twt to a Yarn.social pod
   stats       Parses and performs statistical analytis on a Twtxt feed given a URL or local file
   timeline    Display your timeline

README_ZH.md

@@ -146,7 +146,7 @@ Usage:
 Available Commands:
   completion  generate the autocompletion script for the specified shell
   help        Help about any command
-  login       Login and euthenticate to a Yarn.social pod
+  login       Login and authenticate to a Yarn.social pod
   post        Post a new twt to a Yarn.social pod
   stats       Parses and performs statistical analytis on a Twtxt feed given a URL or local file
   timeline    Display your timeline

cmd/yarnc/login.go

@@ -21,7 +21,7 @@ import (
 var loginCmd = &cobra.Command{
 	Use:     "login [flags]",
 	Aliases: []string{"auth"},
-	Short:   "Login and euthenticate to a Yarn.social pod",
+	Short:   "Login and authenticate to a Yarn.social pod",
 	Long: `The login command allows you to login a user ot login to a
 Yarn.social pod running yarnd. Once successfully authenticated with a valid
 account a API token is generated on the account and a configuration file is