feat: Add header and footer includes for improved site structure

Author: rkttu

_config.yml

@@ -23,6 +23,13 @@ social:
 plugins:
   - jekyll-seo-tag
 
+# Jekyll이 Blazor 프로젝트의 마크다운/빌드 산출물까지 페이지로 처리하지 않도록 제외
+exclude:
+  - src/**/bin/**
+  - src/**/obj/**
+  - src/**/Pages/**
+  - src/**/wwwroot/**/*.md
+
 # 글로벌 설정
 defaults:
   -

_includes/footer.html

@@ -0,0 +1,5 @@
+<div class="outer">
+  <footer class="inner">
+    <p>© {{ site.time | date: '%Y' }} {{ site.author | default: site.github.owner_name }}</p>
+  </footer>
+</div>

_includes/header.html

@@ -0,0 +1,7 @@
+<div class="outer">
+  <header class="inner">
+    <p>
+      <a href="{{ '/' | relative_url }}">{{ site.title | default: site.github.repository_name }}</a>
+    </p>
+  </header>
+</div>