LICENSE: clarified terms for site's code

The *code* for the site is under the MIT license (whereas the contents
are under full copyright).

Author: ariadnavigo

LICENSE

@@ -1,8 +1,33 @@
-ariadnavigo.xyz contents:
+Contents (i.e., text, images) of ariadnavigo.xyz:
 
 	Copyright (c) 2025 Ariadna Vigo
 	All rights reserved
 
+Code used to build the site:
+
+	The MIT License (MIT)
+
+	Copyright (c) 2025 Ariadna Vigo 
+
+	Permission is hereby granted, free of charge, to any person obtaining a
+	copy of this software and associated documentation files (the
+	"Software"), to deal in the Software without restriction, including
+	without limitation the rights to use, copy, modify, merge, publish,
+	distribute, sublicense, and/or sell copies of the Software, and to
+	permit persons to whom the Software is furnished to do so, subject to
+	the following conditions:
+
+	The above copyright notice and this permission notice shall be included
+	in all copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+	IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+	CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+	TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+	SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
 re-terminal Hugo theme:
 
 	The MIT License (MIT)