Updated Mrbgems FAQ (markdown)

Mrbgems-FAQ.md

@@ -25,13 +25,13 @@ end
 Or you may run into a problem where the mruby.h can't be found in that case do this.
 ```ruby
 conf.cc do |cc|
-  cc.include_paths = ['path\to\mruby\include', 'path\to\your\include']
+  cc.include_paths = ['path/to/mruby/include', 'path/to/your/include']
 end
 ```
 Now if you want to link files you do so like this.
 ```ruby
 spec.linker do |linker|
-   linker.library_paths = 'path\to\lib'
+   linker.library_paths = 'path/to/lib'
    linker.libraries = ['mingw32', 'foo', 'bar']
  end
 ```