* Documentation Update
* addressed comments
* new images for the recorder
* Improvements to the docs
* Address the comments
* Core_ML typo
* Updated the links to inference repo
* Put back Inference-Engine.md
* fix typos : brain
* Readd deleted file
* fix typos
* Addressed comments
* Removed the unused images from the images folder. Used the command
```
for f in *; do echo " file : $f" && grep -s -r "$f" /Users/vincentpierre/Documents/ml-agents -i --include *.md --exclude-dir=/Users/vincentpierre/Documents/ml-agents/docs/localized;done
```
to hunt the files down
* Modified the Unity Editor screenshots
* Addressing comments