Add configuration block for Arabic to hugo.toml

This commit will modify hugo.toml to have a new configuration
block for the Arabic localization. Arabic is an RTL language.

Signed-off-by: Ali Dowair <adowair@umich.edu>

hugo.toml

@@ -509,3 +509,18 @@ time_format_blog = "02.01.2006"
 language_alternatives = ["en"]
 description = "Довершена система оркестрації контейнерів"
 languageNameLatinScript = "Ukrainian"
+
+[languages.ar]
+title = "كوبرنيتيز"
+languageName = "العربية (Arabic)"
+weight = 17
+contentDir = "content/ar"
+languagedirection = "rtl"
+
+[languages.ar.params]
+time_format_blog = "02.01.2006"
+# A list of language codes to look for untranslated content, ordered from left to right.
+language_alternatives = ["en"]
+description = "إدارة الحاويات لبيئات الإنتاج"
+languageNameLatinScript = "Arabic"
+