diff --git a/0-get-certs b/0-get-certs
new file mode 100644
index 0000000..b8e54bd
--- /dev/null
+++ b/0-get-certs
@@ -0,0 +1,11 @@
+
+
+
+registry_address=hub.swarmlab.io
+registry_port=5443
+mkdir -p /etc/docker/certs.d/$registry_address:$registry_port
+openssl s_client -showcerts -connect $registry_address:$registry_port < /dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > /etc/docker/certs.d/$registry_address:$registry_port/ca.crt
+
+registry_port=5480
+mkdir -p /etc/docker/certs.d/$registry_address:$registry_port
+openssl s_client -showcerts -connect $registry_address:$registry_port < /dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > /etc/docker/certs.d/$registry_address:$registry_port/ca.crt
diff --git a/0-get-certs.sh b/0-get-certs.sh
new file mode 100755
index 0000000..56d45fb
--- /dev/null
+++ b/0-get-certs.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+sudo /bin/sh ./0-get-certs 
+
+
diff --git a/README.md b/README.md
index fb6e683..243494f 100644
--- a/README.md
+++ b/README.md
@@ -20,4 +20,18 @@ Documentation is a multi-repository site generator (Antora based)
 >  etc 
 >
 
+## On Error:
+>
+> Get https ://registry.vlabs.uniwa.gr:5080/v2/: x509: certificate
+>
+> Pulling  ...
+>
+> ERROR: Get https://registry.vlabs.uniwa.gr:5080/v2/: x509: certificate signed by unknown authority
+>
+
+### run
+>
+>  ./0-get-certs.sh
+>
+
 
diff --git a/build-intro.sh b/build-intro.sh
index 0f33aa7..ef988cd 100755
--- a/build-intro.sh
+++ b/build-intro.sh
@@ -2,4 +2,6 @@ docker stop swarmlab-documentation
 docker container rm swarmlab-documentation
 docker pull hub.swarmlab.io:5480/antora 
 
-docker run -ti --name swarmlab-documentation -v $PWD/intro:/antora -v $PWD/supplemental-ui:/antora/supplemental-ui hub.swarmlab.io:5480/antora  /bin/sh -c "DOCSEARCH_ENABLED=true DOCSEARCH_ENGINE=lunr DOCSEARCH_INDEX_VERSION=latest NODE_PATH=/usr/local/lib/node_modules:\$NODE_PATH exec sh -c '/antora/run/build-intro.sh'"
+docdir="intro"
+build="build-intro.sh"
+docker run -ti --name swarmlab-documentation -v $PWD/$docdir:/antora -v $PWD/supplemental-ui:/antora/supplemental-ui hub.swarmlab.io:5480/antora  /bin/sh -c "DOCSEARCH_ENABLED=true DOCSEARCH_ENGINE=lunr DOCSEARCH_INDEX_VERSION=latest NODE_PATH=/usr/local/lib/node_modules:\$NODE_PATH exec sh -c '/antora/run/$build'"