Update README.md

Small layout corections
Update README.md

URL fix
Merge pull request #218 from tivnet/patch-2

Update README.md
redo in development branch - add "expires_month" and "expires_year"
build "_credit_card_expires" from month and year fields to match
previously existing functionality
Add max nesting level to system status.
Merge branch 'develop' of https://github.com/wpninjas/ninja-forms into develop
Add filter and conditionals to remove desired fields from Credit Card field
Add conditional to class ninja_forms_processing to ensure field is set
to avoid error when given fields are hidden
Merge pull request #221 from stuart-sequeira/development

redo in development branch - add "expires_month" and "expires_year"
Removed an unused function.
Serbia had the wrong country code in the country list.
Changed the editor_id sent to wp_editor to prevent conflicts with the version of TinyMCE introduced in WordPress 3.9.
Preparing for the release of version 3.9.
Merge branch 'release/v2.6.1'