Add wrap flag to text languages

lib/linguist/languages.yml

@@ -10,6 +10,7 @@
 # aliases           - An Array of additional aliases (implicitly
 #                     includes name.downcase)
 # ace_mode          - A String name of Ace Mode (if available)
+# wrap              - Boolean wrap to enable line wrapping (default: false)
 # extension         - An Array of associated extensions
 # primary_extension - A String for the main extension associated with
 #                     the language. Must be unique. Used when a Language is picked
@@ -741,6 +742,7 @@ Markdown:
   type: markup
   lexer: Text only
   ace_mode: markdown
+  wrap: true
   primary_extension: .md
   extensions:
   - .markdown
@@ -1188,6 +1190,7 @@ Textile:
   type: markup
   lexer: Text only
   ace_mode: textile
+  wrap: true
   primary_extension: .textile
   extensions:
   - .textile
@@ -1332,6 +1335,7 @@ ooc:
 
 reStructuredText:
   type: markup
+  wrap: true
   search_term: rst
   aliases:
   - rst