diff --git a/docs/Gemfile b/docs/Gemfile
index 5123d1c66..dd82d07a0 100644
--- a/docs/Gemfile
+++ b/docs/Gemfile
@@ -29,3 +29,7 @@ gem "wdm", "~> 0.1.1", :install_if => Gem.win_platform?
 #gem "kramdown-parser-gfm"
 
 gem "webrick", "~> 1.8"
+
+# render realtive link by plugin
+# https://github.blog/news-insights/product-news/relative-links-for-github-pages/
+gem 'jekyll-relative-links'
diff --git a/docs/_config.yml b/docs/_config.yml
index 58aa4d08b..053efc650 100644
--- a/docs/_config.yml
+++ b/docs/_config.yml
@@ -29,6 +29,11 @@ kramdown:
 remote_theme: rundocs/jekyll-rtd-theme@v2.0.10
 plugins:
   - jekyll-remote-theme
+  - jekyll-relative-links
+
+relative_links:
+  enabled:     true
+  collections: true
 
 # Exclude from processing.
 # The following items will not be processed, by default. Create a custom list