Added arch install post and used custom theme (#9)

config/_default/config.toml

@@ -1,4 +1,7 @@
 baseURL = "https://alejandr0angul0.dev/"
 languageCode = "en-us"
-theme = "terminal"
+theme = "alejandro-angulo"
 
+[markup]
+  [markup.highlight]
+	noClasses = false

config/_default/languages.toml

@@ -1,6 +1,6 @@
 [en]
 languageName = "English"
-title = "Alejandr00"
+title = "alejandr00"
 subtitle = ""
 owner = ""
 keywords = ""
@@ -24,4 +24,3 @@ missingBackButtonLabel = "Back to home page"
     identifier = "gh"
     name = "github"
     url = "https://github.com/alejandro-angulo"
-

config/_default/params.toml

@@ -37,3 +37,6 @@ showLastUpdated = false
   creator = "alejandr0angul0"
   site = "alejandr0angul0"
 
+[markup]
+  [markup.highlight]
+	codeFences = false