diff --git a/README.md b/README.md
index a8ae2d7..67a9366 100644
--- a/README.md
+++ b/README.md
@@ -2,27 +2,54 @@
 
 
 
+## Fix "x509: certificate signed by unknown authority" issue
 
+>  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**
 
-This is the area where you we guide you to Install and use NeoVim
+> sudo su
+>
+> touch set-ca.sh
+>
 
+**copy-paste lines**
 
-== Pre-Installation Steps
+> 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
 
+> exec file
+> 
+> sudo bash ./set-ca.sh
 
-=== Clone repo
 
-[source,bash]
-----
-mkdir [dir4project]
-cd [dir4project]
-GIT_SSL_NO_VERIFY=true git clone https://git.swarmlab.io:3000/docs/docs/src/branch/master
-----
 
+### Clone repo
 
+> mkdir [dir4project]
+> cd [dir4project] 
+> GIT_SSL_NO_VERIFY=true git clone https://git.swarmlab.io:3000/docs/docs/src/branch/master
 
-== Key map features
+
+### docker run
+
+> cd [dir4project]
+>
+> ./swl-nvim.sh
+>
+
+### Key map features
 
 I try to avoid C- combinations for the things I do frequently, mapping things that make sense to the <leader> key. 
 
@@ -30,9 +57,9 @@ The leader key provides a facility for creating customized shortcuts that can be
 
 The leader key is normally defined by the mapleader variable as \. 
 
-== Normal mode
+ **Normal mode**
 
-=== Edit	Action
+### Edit	Action
 
 [cols="1,2",grid=none, frame=none]
 |===