diff --git a/README.md b/README.md
index 022a1912c491de92313738f57ccbdd78783b7f5f..de3d371836759219d21c78210f2f59f70b0ad860 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ and to build the Singularity image use
 build-singularity-image.sh
 ```
 
-The result of building a Singularity image is a standalone `.sif` file which is can be used at any host where Singularity is installed. Please note that building the Singularity image requires that in the build host a Docker container includes the executable `singularity` executable.
+The result of building a Singularity image is a standalone `.sif` file which is can be used at any host where Singularity is installed. Please note that building the Singularity image requires that in the build host a Docker the `singularity` executable be present in the form of a Docker container.
 
 ## How to use the ARC client commands
 
@@ -35,7 +35,7 @@ In the deployment directory, a symbolic link is created for each [ARC6 client co
 $ voms-proxy-init --voms lsst
 
 # Submit a test job
-$ arctest -J 2 -C https://ccosvms0201.in2p3.fr:9443/arex
+$ arctest -J 2 -C https://ccarccelsst01.in2p3.fr:9443/arex
 ```
 
 ## Author