Update concepts-connection-pooling-best-practices.md

changed text style of "PgBouncer" to bold

Author: thakagi

articles/postgresql/flexible-server/concepts-connection-pooling-best-practices.md

@@ -29,7 +29,7 @@ Although there are different tools for connection pooling, in this section, we d
 
 **PgBouncer** is an efficient connection pooler designed for PostgreSQL, offering the advantage of reducing processing time and optimizing resource usage in managing multiple client connections to one or more databases. **PgBouncer** incorporates three distinct pooling mode for connection rotation:
 
-- **Session pooling:** This method assigns a server connection to the client application for the entire duration of the client's connection. Upon disconnection of the client application, PgBouncer promptly returns the server connection back to the pool. This pooling mechanism is the default setting. (Note: It isn't recommended in most of the cases and don't give any performance benefits over classic connections).
+- **Session pooling:** This method assigns a server connection to the client application for the entire duration of the client's connection. Upon disconnection of the client application, **PgBouncer** promptly returns the server connection back to the pool. This pooling mechanism is the default setting. (Note: It isn't recommended in most of the cases and don't give any performance benefits over classic connections).
 - **Transaction pooling:** With transaction pooling, a server connection is dedicated to the client application during a transaction. Once the transaction is successfully completed, **PgBouncer** intelligently releases the server connection, making it available again within the pool. Transaction pooling is the default mode in Flexible server, and it does not support prepared transactions.
 - **Statement pooling:** In statement pooling, a server connection is allocated to the client application for each individual statement. Upon the statement's completion, the server connection is promptly returned to the connection pool. It's important to note that multi-statement transactions are not supported in this mode.