Added GPLv3 license and CoC

CoC.md

@@ -0,0 +1,7 @@
+# Go Fuck Yourself
+
+Offended? Go away. We don't need people who are offended because of a stranger on the internet.  
+Not offended? You're welcome to contribute.
+
+© Copyright 2015 [WTFCoC Consortium Committee](https://github.com/mniip/wtfcoc).
+

lexis.go

@@ -1,21 +1,19 @@
 package main
 
 // Copyright (C) 2019, Maxim Lihachev, <envrm@yandex.ru>
-
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
+//
+// This program is free software: you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by the Free
+// Software Foundation, version 3.
+//
 // This program is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
-
+//
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <http://www.gnu.org/licenses/>.
 
-
 import (
 	"os"
 	"fmt"
@@ -292,7 +290,7 @@ func srvParse(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
-// srvPage 
+// srvPage
 func srvPage(w http.ResponseWriter, r *http.Request) {
 	vars := mux.Vars(r)