minor updates

README.md

@@ -1,5 +1,5 @@
 # Grouper Training Environment (gte)
-The gte is a set of docker images that contain all the software components, configuration, and setup neccesary to complete the InCommon Grouper Training course. Each docker image tag coorelates to a particular module, exercise, step, and the overall gte version. For example, the gte image tag for 101 Gouper Basics is 101.1.1-201906. The docker command to run the image for the 101 course is:
+The gte is a set of docker images that contain all the software components, configuration, and setup neccesary to complete the InCommon Grouper Training course. Each docker image tag coincides with a particular course, exercise, step, and the overall gte version. For example, the gte image tag for 101 Gouper Basics is 101.1.1-201906. The docker command to run the image for the 101 course is:
 ```
 docker run -d -p 80:80 -p 389:389 -p 8443:443 -p 3306:3306 \
   --name gte-101.1.1 tier/gte:101.1.1-201906
@@ -24,7 +24,7 @@ All of the gte image tags are published to <https://hub.docker.com/r/tier/gte>.
 docker run -d -p 80:80 -p 389:389 -p 8443:443 -p 3306:3306 \
   --name {VERSION_TAG} tier/gte:{VERSION_TAG}
 ```
-Where {VERSION_TAG} takes the form of {course}.{module}.{step}-{version}. For example:
+Where {VERSION_TAG} takes the form of {course}.{exercise}.{step}-{version}. For example:
 ```
 docker run -d -p 80:80 -p 389:389 -p 8443:443 -p 3306:3306 \
   --name 101.1.1-201906 tier/gte:101.1.1-201906