Update readme

README.md

@@ -17,16 +17,15 @@ docker pull ubcuas/uasitl:latest
 The image can also be built locally:
 ```
 ./configure.sh
-docker build --tag ubcuas/uasitl:latest x86/
+docker build --tag ubcuas/uasitl:latest uasitl/
 ```
 The image can be built using a custom `Ardupilot` repository:
 ```
 ./configure.sh
-[email protected]:ubcuas/accupilot.git docker build --build-arg SSH_PRIVATE_KEY="$SSH_PRIVATE_KEY" --tag ubcuas/uasitl:accupilot x86/
+[email protected]:ubcuas/accupilot.git docker build --build-arg SSH_PRIVATE_KEY="$SSH_PRIVATE_KEY" --tag ubcuas/uasitl:accupilot uasitl/
 ```
 Please note the bash variable `$SSH_PRIVATE_KEY` needs to be a valid ssh private key. If you are building on command line you can do this in one shot like so: `--build-arg SSH_PRIVATE_KEY="$(cat ~/.ssh/id_rsa)"`.
 `ARDUPILOT_REPO` is an ssh git url to an ardupilot repository.
-**WARNING: Building locally bakes your private SSH key into the docker image, do NOT share this image with others.**
 
 ## Usage
 To launch a single ArduCopter SITL on host TCP port 5760:
@@ -35,7 +34,7 @@ docker run --rm -p 5760-5780:5760-5780 -it ubcuas/uasitl:latest
 ```
 To start 3 ArduCopter SITLs on host TCP ports 5760, 5770 and 5780:
 ```
-docker run --rm -p 5760-5780:5760-5780 --env NUMCOPTERS=3 -it uasitl
+docker run --rm -p 5760-5780:5760-5780 --env NUMCOPTERS=3 -it ubcuas/uasitl:latest
 ```
 
 ## Troubleshooting