Update readme with correct service versions and profile (#935)

The current code examples were referencing outdated docker versions and also a
profile that is not available by default.

Signed-off-by: Adam Stokes <51892+adam-stokes@users.noreply.github.com>
(cherry picked from commit c941a6e)

cli/README.md

@@ -8,27 +8,27 @@ The tool will use Golang's de-facto standard for writing CLIs [`Cobra`](https://
 
 ```sh
 # if you are in the Go development world
-$ GO111MODULE=on go run main.go run service apache -v 2.4
-$ GO111MODULE=on go run main.go run service mysql -v 5.6
+$ GO111MODULE=on go run main.go run service apache -v 2.4.20
+$ GO111MODULE=on go run main.go run service mysql -v 5.7.12
 
 # if you prefer to install the CLI
 $ GO111MODULE=on go build -i -o op
-$ ./op run service apache -v 2.4
-$ ./op run service mysql -v 5.6
-$ ./op run profile observability
+$ ./op run service apache -v 2.4.20
+$ ./op run service mysql -v 5.7.12
+$ ./op run profile metricbeat
 ```
 
 The tool also provides a way to stop those running services:
 ```sh
 # if you are in the Go development world
-$ GO111MODULE=on go run main.go stop service apache -v 2.4
-$ GO111MODULE=on go run main.go stop service mysql -v 5.6
+$ GO111MODULE=on go run main.go stop service apache -v 2.4.20
+$ GO111MODULE=on go run main.go stop service mysql -v 5.7.12
 
 # if you prefer to install the CLI
 $ GO111MODULE=on go build -i -o op
-$ ./op stop service apache -v 2.4
-$ ./op stop service mysql -v 5.6
-$ ./op stop profile observability
+$ ./op stop service apache -v 2.4.20
+$ ./op stop service mysql -v 5.7.12
+$ ./op stop profile metricbeat
 ```
 
 >By the way, `op` comes from `Observability Provisioner`.