updating version-adding nav

.ruby-version

@@ -1 +1 @@
-2.7.4
+3.4.1

Gemfile

@@ -28,4 +28,12 @@ gem "webrick"
 
 gem 'jekyll-redirect-from'
 
-gem 'jekyll-sitemap'
+gem 'jekyll-sitemap'
+
+gem 'csv'
+
+gem 'logger'
+
+gem 'base64'
+
+gem 'bigdecimal'

Gemfile.lock

@@ -1,20 +1,33 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.8.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.7)
+      public_suffix (>= 2.0.2, < 7.0)
+    base64 (0.2.0)
+    bigdecimal (3.1.9)
     colorator (1.1.0)
-    concurrent-ruby (1.1.9)
+    concurrent-ruby (1.3.5)
+    csv (3.3.2)
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
     eventmachine (1.2.7)
-    ffi (1.15.5)
+    ffi (1.17.1)
+    ffi (1.17.1-aarch64-linux-gnu)
+    ffi (1.17.1-aarch64-linux-musl)
+    ffi (1.17.1-arm-linux-gnu)
+    ffi (1.17.1-arm-linux-musl)
+    ffi (1.17.1-arm64-darwin)
+    ffi (1.17.1-x86-linux-gnu)
+    ffi (1.17.1-x86-linux-musl)
+    ffi (1.17.1-x86_64-darwin)
+    ffi (1.17.1-x86_64-linux-gnu)
+    ffi (1.17.1-x86_64-linux-musl)
     forwardable-extended (2.6.0)
     http_parser.rb (0.8.0)
-    i18n (1.8.11)
+    i18n (1.14.7)
       concurrent-ruby (~> 1.0)
-    jekyll (4.2.1)
+    jekyll (4.2.2)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
@@ -29,67 +42,80 @@ GEM
       rouge (~> 3.0)
       safe_yaml (~> 1.0)
       terminal-table (~> 2.0)
-    jekyll-feed (0.16.0)
+    jekyll-feed (0.17.0)
       jekyll (>= 3.7, < 5.0)
-    jekyll-last-modified-at (1.3.0)
+    jekyll-include-cache (0.2.1)
+      jekyll (>= 3.7, < 5.0)
+    jekyll-last-modified-at (1.3.2)
       jekyll (>= 3.7, < 5.0)
-      posix-spawn (~> 0.3.9)
     jekyll-redirect-from (0.16.0)
       jekyll (>= 3.3, < 5.0)
-    jekyll-sass-converter (2.1.0)
+    jekyll-sass-converter (2.2.0)
       sassc (> 2.0.1, < 3.0)
-    jekyll-seo-tag (2.7.1)
+    jekyll-seo-tag (2.8.0)
       jekyll (>= 3.8, < 5.0)
     jekyll-sitemap (1.4.0)
       jekyll (>= 3.7, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    just-the-docs (0.3.3)
+    just-the-docs (0.10.1)
       jekyll (>= 3.8.5)
-      jekyll-seo-tag (~> 2.0)
-      rake (>= 12.3.1, < 13.1.0)
-    kramdown (2.3.1)
-      rexml
+      jekyll-include-cache
+      jekyll-seo-tag (>= 2.0)
+      rake (>= 12.3.1)
+    kramdown (2.5.1)
+      rexml (>= 3.3.9)
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     liquid (4.0.4)
-    listen (3.7.0)
+    listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
+    logger (1.6.6)
     mercenary (0.4.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    posix-spawn (0.3.15)
-    public_suffix (4.0.6)
-    rake (13.0.6)
-    rb-fsevent (0.11.0)
-    rb-inotify (0.10.1)
+    public_suffix (6.0.1)
+    rake (13.2.1)
+    rb-fsevent (0.11.2)
+    rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.3.6)
-      strscan
-    rouge (3.27.0)
+    rexml (3.4.1)
+    rouge (3.30.0)
     safe_yaml (1.0.5)
     sassc (2.4.0)
       ffi (~> 1.9)
-    strscan (3.1.0)
     terminal-table (2.0.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     unicode-display_width (1.8.0)
-    webrick (1.8.2)
+    webrick (1.9.1)
 
 PLATFORMS
+  aarch64-linux-gnu
+  aarch64-linux-musl
+  arm-linux-gnu
+  arm-linux-musl
+  arm64-darwin
   ruby
-  x86_64-darwin-16
+  x86-linux-gnu
+  x86-linux-musl
+  x86_64-darwin
+  x86_64-linux-gnu
+  x86_64-linux-musl
 
 DEPENDENCIES
+  base64
+  bigdecimal
+  csv
   jekyll (~> 4.2.0)
   jekyll-feed (~> 0.12)
   jekyll-last-modified-at
   jekyll-redirect-from
   jekyll-sitemap
   just-the-docs
+  logger
   wdm (~> 0.1.1)
   webrick
 
 BUNDLED WITH
-   2.2.27
+   2.6.4

_data/nav.yml

@@ -70,10 +70,10 @@
 
 - title: Observability
   page: observability/observability.md
-  children:
+  subcategories:
   - subtitle: Introduction
     page: observability/introduction.md
-    children:
+    subcategories:
     - subtitle: What is observability 
       page: observability/what-is-observability.md
     - subtitle: What is metrics monitoring