Some small misc changes

Include BSD 3-Clause license in wiki, add license.md page to explicitly
state licenses.

headpages/about.md

@@ -9,4 +9,5 @@ This wiki is still very work in progress, this page is a good example ;-)
 
 Below are some useful links:
 
-* [Markdown Reference](/md-ref.md)
+* [Markdown Reference](/md-ref.html)
+* [Wiki licensing](/license.html)

headpages/index.md

@@ -13,3 +13,4 @@ suggestions? Join the [Discord](https://discord.gg/f4b4e2Nudk)!
 
 Have a fix or suggestion for the wiki? Both issues and PRs are open on the
 [GitHub repository](https://github.com/nekowebwiki/wikigen).
+

headpages/license.md

@@ -0,0 +1,7 @@
+---
+title: Wiki licensing
+---
+
+All wiki content is available under the Creative Commons Attribution-ShareAlike 4.0 International Public License. A copy of the license can be found at this url: [`CC_BY-SA.txt`](/CC_BY-SA.txt).
+
+The wiki source code, meaning wiki-specific HTML, CSS, and JavaScript, is under the BSD 3-Clause. You can find a copy of it at [`BSD-3-CLAUSE.txt`](/BSD-3-CLAUSE.txt)

static/BSD-3-CLAUSE.txt

@@ -0,0 +1,29 @@
+Copyright 2024 Nekoweb Wiki
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    (1) Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer. 
+
+    (2) Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in
+    the documentation and/or other materials provided with the
+    distribution.  
+
+    (3)The name of the author may not be used to
+    endorse or promote products derived from this software without
+    specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.