Rename extended->extended-postgres; adjust README

Author: NikolayS

.gitlab-ci.yml

@@ -2,4 +2,4 @@ stages:
   - build-image
 
 include:
-  - local: '/extended/build-images-ci.yml'
+  - local: '/extended-postgres/build-images-ci.yml'

README.md

@@ -1,12 +1,13 @@
 # PostgreSQL Images
 
 ## Extended images
+PostgreSQL Docker images with various additional extensions. Includes the majority of extensions, including those that are supported by RDS.
 
-PostgreSQL Docker images with various additional extensions. Includes the majority of extensions supported by RDS.
+Derived from [official PostgreSQL images](https://hub.docker.com/_/postgres). One of the key differences is that PostgreSQL can be stopped or restarted without the container being stopped (this is because in the official image, the `postmaster` process is the main one).
 
-Derived from [official PostgreSQL images](https://hub.docker.com/_/postgres). Storage-optimized: the size of each image is just ~120 MiB.
+Storage-optimized: the size of each image is just ~120 MiB.
 
-Use these images with Database Lab, when you need HypoPG or anything else. 
+Use these images with Database Lab, when you need HypoPG or anything else.
 
 ### What's inside
 Available PostgreSQL versions: 9.6, 10, 11, 12, 13. Extensions:

extended/Dockerfile renamed to extended-postgres/Dockerfile

@@ -14,7 +14,7 @@ stages:
     REGISTRY_USER: "${DH_CI_REGISTRY_USER}"
     REGISTRY_PASSWORD: "${DH_CI_REGISTRY_PASSWORD}"
     REGISTRY: "${DH_CI_REGISTRY}"
-    DOCKER_FILE: "extended/Dockerfile"
+    DOCKER_FILE: "extended-postgres/Dockerfile"
     DOCKER_NAME: "postgresai/extended-postgres"
 
 .job_template: &build_image_definition_gl
@@ -30,7 +30,7 @@ stages:
     REGISTRY_USER: "${CI_REGISTRY_USER}"
     REGISTRY_PASSWORD: "${CI_REGISTRY_PASSWORD}"
     REGISTRY: "${CI_REGISTRY}"
-    DOCKER_FILE: "extended/Dockerfile"
+    DOCKER_FILE: "extended-postgres/Dockerfile"
     DOCKER_NAME: "registry.gitlab.com/postgres-ai/custom-images/extended-postgres"
 
 .only_var_template: &only_tag_release