Fix formatting of docker exec docs entry
Fix formatting of docker exec docs entry

gorelikov/testcontainers-java,rnorth/test-containers,outofcoffee/testcontainers-java,barrycommins/testcontainers-java,barrycommins/testcontainers-java,testcontainers/testcontainers-java,gorelikov/testcontainers-java,testcontainers/testcontainers-java,outofcoffee/testcontainers-java,testcontainers/testcontainers-java,rnorth/test-containers,barrycommins/testcontainers-java,outofcoffee/testcontainers-java,barrycommins/testcontainers-java,gorelikov/testcontainers-java,gorelikov/testcontainers-java,rnorth/test-containers