restructure and folder rename

.gitignore

@@ -17,7 +17,7 @@ kubernetes/portainer/business/volume*
 
 #ignore postgres data for sample and database tutorials
 pgdata
-storage/databases/postgres/docker/backup/
-storage/databases/postgres/docker/archive/
-storage/databases/postgres/3-replication/postgres-1/archive/*
-storage/databases/postgres/3-replication/postgres-2/archive/*
+storage/databases/postgresql/docker/backup/
+storage/databases/postgresql/docker/archive/
+storage/databases/postgresql/3-replication/postgres-1/archive/*
+storage/databases/postgresql/3-replication/postgres-2/archive/*

storage/databases/postgresql/1-introduction/README.md

@@ -15,7 +15,7 @@ PostgreSQL [Docker Image](https://hub.docker.com/_/postgres)
 ## Run a simple PostgreSQL database (compose)
 
 ```
-cd storage/databases/postgres/1-introduction
+cd storage/databases/postgresql/1-introduction
 
 docker compose up
 ```

storage/databases/postgresql/2-configuration/README.md

@@ -11,7 +11,7 @@ Let's start where we left off, and review our simple PostgreSQL database:
 ## Run a simple PostgreSQL database (docker)
 
 ```
-cd storage/databases/postgres/2-configuration
+cd storage/databases/postgresql/2-configuration
 docker run -it --rm --name postgres `
   -e POSTGRES_PASSWORD=admin123 `
   -v ${PWD}/pgdata:/var/lib/postgresql/data `

storage/databases/postgresql/3-replication/README.md

@@ -26,7 +26,7 @@ docker network create postgres
 Start with instance 1: 
 
 ```
-cd storage/databases/postgres/3-replication
+cd storage/databases/postgresql/3-replication
 
 docker run -it --rm --name postgres-1 `
 --net postgres `
@@ -90,7 +90,7 @@ The utility is in the PostgreSQL docker image, so let's run it without running a
 Note that we also mount our blank data directory as we will make a new backup in there: 
 
 ```
-cd storage/databases/postgres/3-replication
+cd storage/databases/postgresql/3-replication
 
 docker run -it --rm `
 --net postgres `
@@ -109,7 +109,7 @@ Now we should see PostgreSQL data ready for our second instance in `${PWD}/postg
 ## Start standby instance
 
 ```
-cd storage/databases/postgres/3-replication
+cd storage/databases/postgresql/3-replication
 
 docker run -it --rm --name postgres-2 `
 --net postgres `

storage/databases/postgresql/README.md

@@ -9,7 +9,7 @@ wal_keep_size    or by configuring a replication slot for the standby
 
 ```
 
-cd storage\databases\postgres\docker
+cd storage/databases/postgresqlql/docker
 docker network create postgres
 
 docker run -d --rm --name postgres-1 `