fix markup for inline code in README

README.rdoc

@@ -93,7 +93,7 @@ Routes may include a variety of matching conditions, such as the user agent:
     # Matches non-songbird browsers
   end
 
-Other available conditions are `host_name` and `provides`:
+Other available conditions are +host_name+ and +provides+:
 
   get '/', :host_name => /^admin\./ do
     "Admin Area, Access denied!"
@@ -129,8 +129,8 @@ also accepted.
 You can return any object that would either be a valid Rack response, Rack body object
 or HTTP status code:
 
-* An Array with three elements: `[status (Fixnum), headers (Hash), response body (responds to #each)]`
-* An Array with two elements: `[status (Fixnum), response body (responds to #each)]`
+* An Array with three elements: +[status (Fixnum), headers (Hash), response body (responds to #each)]+
+* An Array with two elements: +[status (Fixnum), response body (responds to #each)]+
 * An object that responds to #each and passes nothing but strings to the given block
 * A Fixnum representing the status code
 
@@ -349,7 +349,7 @@ Templates may be defined at the end of the source file:
   %div.title Hello world!!!!!
 
 NOTE: Inline templates defined in the source file that requires sinatra
-are automatically loaded. Call `enable :inline_templates` explicitly if you
+are automatically loaded. Call +enable :inline_templates+ explicitly if you
 have inline templates in other source files.
 
 === Named Templates