Merge pull request #222 from sourcebots/JDP-tweaks

Docs tweaks

Author: Adimote

docs/programming/index.md

@@ -43,7 +43,7 @@ A log file is saved to your USB so you can see what your robot did,
 what it didn't do, and any errors it raised. The file is saved to log.txt in the top-level directory of the USB drive.
 
 !!! warning
-    The previous log file is deleted at the start of each run, so copy it elsewhere if you need to keep hold of it!
+    The latest log is always called log.txt, if the code is rerun the previous log will be renamed with an increasing number suffix
 
 ## Running Code before pressing the start button
 

docs/programming/vision/index.md

@@ -21,7 +21,8 @@ markers = robot.camera.see()
 ```
 
 !!! tip
-    Your camera will be able to process images better if they are not blurred.
+    Taking images while moving will cause them to be blurry, which will cause marker detection to fail.
+    Try pausing movment while taking an image.
 
 ## Saving camera output
 

docs/programming/vision/orientation.md

@@ -30,7 +30,7 @@ The following table visually explains what positive and negative rotations repre
 |---:|:---:|:---:|
 | **`yaw`** | ![m0x45y0z] | ![m0x-45y0z] |
 | **`pitch`** | ![m-45x0y0z] | ![m45x0y0z] |
-| **`roll`** | ![m0x0y45z] | ![m0x0y-45z] |
+| **`roll`** | ![m0x0y-45z] | ![m0x0y45z] |
 
 [m0x0y0z]: ../../assets/img/api/vision/m0x0y0z.png
 [m-45x0y0z]: ../../assets/img/api/vision/m-45x0y0z.png