update readme.md

Author: ANKUR DWIVEDI

README.md

@@ -247,34 +247,6 @@ If you want to generate transformations in your application and add them to the
 | rotation                      | rt                              |
 | blur                          | bl                              |
 | named                         | n                               |
-| overlay_x                     | ox                              |
-| overlay_y                     | oy                              |
-| overlay_focus                 | ofo                             |
-| overlay_height                | oh                              |
-| overlay_width                 | ow                              |
-| overlay_image                 | oi                              |
-| overlay_image_trim            | oit                             |
-| overlay_image_aspect_ratio    | oiar                            |
-| overlay_image_background      | oibg                            |
-| overlay_image_border          | oib                             |
-| overlay_image_dpr             | oidpr                           |
-| overlay_image_quality         | oiq                             |
-| overlay_image_cropping        | oic                             |
-| overlay_image_focus           | oifo                            |
-| overlay_text                  | ot                              |
-| overlay_text_font_size        | ots                             |
-| overlay_text_font_family      | otf                             |
-| overlay_text_color            | otc                             |
-| overlay_text_transparency     | oa                              |
-| overlay_alpha                 | oa                              |
-| overlay_text_typography       | ott                             |
-| overlay_background            | obg                             |
-| overlay_text_encoded          | ote                             |
-| overlay_text_width            | otw                             |
-| overlay_text_background       | otbg                            |
-| overlay_text_padding          | otp                             |
-| overlay_text_inner_alignment  | otia                            |
-| overlay_radius                | or                              |
 | progressive                   | pr                              |
 | lossless                      | lo                              |
 | trim                          | t                               |