Add pretty pictures

contrib/orthorectify/README.md

@@ -1,7 +1,11 @@
 # Orthorectification Tool
 
+![image](https://user-images.githubusercontent.com/1951843/111536715-fc91c380-8740-11eb-844c-5b7960186391.png)
+
 This tool is capable of orthorectifing individual images (or all images) from an ODM reconstruction. It does not account for visibility occlusion, so you will get artifacts near buildings (help us improve this?).
 
+![image](https://user-images.githubusercontent.com/1951843/111529183-3ad6b500-8738-11eb-9960-b1aa676f863b.png)
+
 ## Usage
 
 After running a reconstruction using ODM:
@@ -57,4 +61,4 @@ Help us improve this module! We could add:
 
  - [ ] GPU support for faster processing
  - [ ] Visibility checks
- - [ ] Merging of multiple orthorectified images (blending, filtering, seam leveling)
+ - [ ] Merging of multiple orthorectified images (blending, filtering, seam leveling)