Update concepts-extensions.md

Author: GennadNY

articles/postgresql/flexible-server/concepts-extensions.md

@@ -100,7 +100,7 @@ Using the [Azure portal](https://portal.azure.com):
    2. On the sidebar, select **Server Parameters**.
    3. Search for the `shared_preload_libraries` parameter.
    4. Select extensions you wish to add.
-     :::image type="content" source="./media/concepts-extensions/sharedlibraries.png" alt-text=" Screenshot showing Azure Database for PostgreSQL -setting shared preload libraries parameter setting  for extensions installation .":::
+     :::image type="content" source="./media/concepts-extensions/shared-libraries.png" alt-text=" Screenshot showing Azure Database for PostgreSQL -setting shared preload libraries parameter setting  for extensions installation .":::
 
 
 Using [Azure CLI](https://docs.microsoft.com/cli/azure/):
@@ -145,6 +145,7 @@ The following extensions are available in Azure Database for PostgreSQL - Flexib
 > |[isn](https://www.postgresql.org/docs/13/isn.html)                          | 1.2             | data types for international product numbering standards|
 > |[lo](https://www.postgresql.org/docs/13/lo.html)                            | 1.1             | large object maintenance |
 > |[ltree](https://www.postgresql.org/docs/13/ltree.html)                        | 1.2             | data type for hierarchical tree-like structures|
+ > |[orafce](https://github.com/orafce/orafce)                        | 3.1.8            |implements in Postgres some of the functions from the Oracle database that are missing|
 > |[pageinspect](https://www.postgresql.org/docs/13/pageinspect.html)                        | 1.8             | inspect the contents of database pages at a low level|
 > |[pg_buffercache](https://www.postgresql.org/docs/13/pgbuffercache.html)               | 1.3             | examine the shared buffer cache|
 > |[pg_cron](https://github.com/citusdata/pg_cron)                        | 1.4             | Job scheduler for PostgreSQL|
@@ -200,6 +201,7 @@ The following extensions are available in Azure Database for PostgreSQL - Flexib
 > |[isn](https://www.postgresql.org/docs/12/isn.html)                          | 1.2             | data types for international product numbering standards|
 > |[lo](https://www.postgresql.org/docs/12/lo.html)                            | 1.1             | large object maintenance |
 > |[ltree](https://www.postgresql.org/docs/12/ltree.html)                        | 1.1             | data type for hierarchical tree-like structures|
+>  |[orafce](https://github.com/orafce/orafce)                        | 3.1.8            |implements in Postgres some of the functions from the Oracle database that are missing|
 > |[pageinspect](https://www.postgresql.org/docs/12/pageinspect.html)                        | 1.7             | inspect the contents of database pages at a low level|
 > |[pg_buffercache](https://www.postgresql.org/docs/12/pgbuffercache.html)               | 1.3             | examine the shared buffer cache|
 > |[pg_cron](https://github.com/citusdata/pg_cron)                        | 1.4            | Job scheduler for PostgreSQL|
@@ -255,6 +257,7 @@ The following extensions are available in Azure Database for PostgreSQL - Flexib
 > |[isn](https://www.postgresql.org/docs/11/isn.html)                          | 1.2             | data types for international product numbering standards|
 > |[lo](https://www.postgresql.org/docs/11/lo.html)                            | 1.1             | large object maintenance |
 > |[ltree](https://www.postgresql.org/docs/11/ltree.html)                        | 1.1             | data type for hierarchical tree-like structures|
+> |[orafce](https://github.com/orafce/orafce)                        | 3.1.8            |implements in Postgres some of the functions from the Oracle database that are missing|
 > |[pageinspect](https://www.postgresql.org/docs/11/pageinspect.html)                        | 1.7             | inspect the contents of database pages at a low level|
 > |[pg_buffercache](https://www.postgresql.org/docs/11/pgbuffercache.html)               | 1.3             | examine the shared buffer cache|
 > |[pg_cron](https://github.com/citusdata/pg_cron)                        | 1.4            | Job scheduler for PostgreSQL|