update : refactor auto-upstall and installation methods

README.md

@@ -76,8 +76,8 @@ docker run -d --name nocodb
 docker run -d --name nocodb-postgres 
            -v "${pwd}"/nocodb:/usr/app/data/ 
            -p 8080:8080 
-           -e NC_DB="pg://host.docker.internal:5432?u=root&p=password&d=d1" 
+           -e NC_DB="pg://host.docker.internal:5432?u=root&p=password&d=d1" # replace with your pg connection string 
-           -e NC_AUTH_JWT_SECRET="569a1821-0a93-45e8-87ab-eb857f20a010" 
+           -e NC_AUTH_JWT_SECRET="569a1821-0a93-45e8-87ab-eb857f20a010" # replace with a random secret 
            nocodb/nocodb:latest
 ```