Fix typos

Changed Optionnal to Optional

public/assets/config.yml.dist

@@ -10,7 +10,7 @@ logo: "logo.png"
 header: true
 footer: '<p>Created with <span class="has-text-danger">❤️</span> with <a href="https://bulma.io/">bulma</a>, <a href="https://vuejs.org/">vuejs</a> & <a href="https://fontawesome.com/">font awesome</a> // Fork me on <a href="https://github.com/bastienwirtz/homer"><i class="fab fa-github-alt"></i></a></p>' # set false if you want to hide it.
 
-# Optionnal theme customization
+# Optional theme customization
 theme: default
 colors:
   light:
@@ -51,7 +51,7 @@ links:
   - name: "Contribute"
     icon: "fab fa-github"
     url: "https://github.com/bastienwirtz/homer"
-    target: "_blank" # optionnal html a tag target attribute
+    target: "_blank" # optional html a tag target attribute
   - name: "Wiki"
     icon: "fas fa-book"
     url: "https://www.wikipedia.org/"
@@ -68,7 +68,7 @@ services:
         subtitle: "Bookmark example"
         tag: "app"
         url: "https://www.reddit.com/r/selfhosted/"
-        target: "_blank" # optionnal html a tag target attribute
+        target: "_blank" # optional html a tag target attribute
       - name: "Another one"
         logo: "assets/tools/sample2.png"
         subtitle: "Another application"

public/assets/config.yml.dist.sample-sui

@@ -9,7 +9,7 @@ logo: false
 
 header: true
 
-# Optionnal theme customization
+# Optional theme customization
 theme: sui
 colors:
   light: