Make top bar link relative

WebsiteGenerator/Generators/HTMLElementsGenerator.swift

@@ -10,9 +10,11 @@ struct HTMLElementsGenerator {
         "\(title)<span class=\"suffix\">\(suffix)</span>"
     }
 
-    // - TODO: Make link relative
-    func topBarWebsiteTitle(language: String) -> String {
-        Element.htmlPagePathAddition(for: language)
+    func topBarWebsiteTitle(language: String, from page: Element) -> String {
+        guard let pathToRoot = page.pathToRoot else {
+            return Element.htmlPageName(for: language)
+        }
+        return pathToRoot + Element.htmlPagePathAddition(for: language)
     }
 
     func topBarLanguageButton(_ language: String) -> String {

WebsiteGenerator/Generators/OverviewPageGenerator.swift

@@ -21,7 +21,8 @@ struct OverviewPageGenerator {
             let languageButton = section.nextLanguage(for: language)
             content[.topBar] = factory.topBar.generate(
                 sectionUrl: section.sectionUrl(for: language),
-                languageButton: languageButton)
+                languageButton: languageButton,
+                page: section)
             content[.contentClass] = "overview"
             content[.header] = makeHeader(page: section, metadata: metadata, language: language)
             content[.content] = makeContent(section: section, language: language)

WebsiteGenerator/Generators/PageGenerator.swift

@@ -30,7 +30,7 @@ struct PageGenerator {
         var content = [PageTemplate.Key : String]()
         content[.head] = factory.pageHead.generate(page: page, language: language, includesCode: pageIncludesCode)
         let sectionUrl = page.sectionUrl(for: language)
-        content[.topBar] = factory.topBar.generate(sectionUrl: sectionUrl, languageButton: nextLanguage)
+        content[.topBar] = factory.topBar.generate(sectionUrl: sectionUrl, languageButton: nextLanguage, page: page)
         content[.contentClass] = "content"
 
         if !page.useCustomHeader {