docs: fix db drivers PG and ES

docs/src/pages/docs/Connecting to Databases/index.mdx

@@ -36,13 +36,13 @@ A list of some of the recommended packages.
 |[ClickHouse](/docs/databases/clickhouse)|```pip install sqlalchemy-clickhouse```|```clickhouse://{username}:{password}@{hostname}:{port}/{database}```|
 |[CockroachDB](/docs/databases/cockroachdb)|```pip install cockroachdb```|```cockroachdb://root@{hostname}:{port}/{database}?sslmode=disable```|
 |[Dremio](/docs/databases/dremio)|```pip install sqlalchemy_dremio```|```dremio://user:pwd@host:31010/```|
-|[Elasticsearch](/docs/databases/elasticsearch)|```pip install sqlalchemy-exasol```|```elasticsearch+http://{user}:{password}@{host}:9200/```|
+|[Elasticsearch](/docs/databases/elasticsearch)|```pip install elasticsearch-dbapi```|```elasticsearch+http://{user}:{password}@{host}:9200/```|
 |[Exasol](/docs/databases/exasol)|```pip install sqlalchemy-exasol```|```exa+pyodbc://{username}:{password}@{hostname}:{port}/my_schema?CONNECTIONLCALL=en_US.UTF-8&driver=EXAODBC```|
 |[Google Sheets](/docs/databases/google-sheets)|```pip install gsheetsdb```|```gsheets://```|
 |[IBM Db2](/docs/databases/ibm-db2)|```pip install ibm_db_sa```|```db2+ibm_db://```|
 |[MySQL](/docs/databases/mysql)|```pip install mysqlclient```|```mysql://<UserName>:<DBPassword>@<Database Host>/<Database Name>```|
 |[Oracle](/docs/databases/oracle)|```pip install cx_Oracle```|```oracle://```|
-|[PostgreSQL](/docs/databases/postgresql)|```pip install psycopg2```|```postgresql:://<UserName>:<DBPassword>@<Database Host>/<Database Name>```|
+|[PostgreSQL](/docs/databases/postgresql)|```pip install psycopg2```|```postgresql://<UserName>:<DBPassword>@<Database Host>/<Database Name>```|
 |[Presto](/docs/databases/presto)|```pip install pyhive```|```presto://```|
 |[SAP Hana](/docs/databases/hana)|```pip install hdbcli sqlalchemy-hana or pip install apache-superset[hana]```|```hana://{username}:{password}@{host}:{port}```|
 |[Snowflake](/docs/databases/snowflake)|```pip install snowflake-sqlalchemy```|```ssnowflake://{user}:{password}@{account}.{region}/{database}?role={role}&warehouse={warehouse}```|