Address doc comments

Author: beijiez

instrumentation/opentelemetry-instrumentation-mysql/src/opentelemetry/instrumentation/mysql/__init__.py

@@ -109,7 +109,7 @@ def instrument_connection(self, connection, tracer_provider=None):
                 configured tracer provider will be automatically used.
 
         Returns:
-            An instrumented MySQL connection with OpenTelemetry tracing enabled,
+            An instrumented MySQL connection with OpenTelemetry tracing enabled.
         """
         return dbapi.instrument_connection(
             __name__,

instrumentation/opentelemetry-instrumentation-mysqlclient/src/opentelemetry/instrumentation/mysqlclient/__init__.py

@@ -63,7 +63,7 @@
 
     # Alternatively, use instrument_connection for an individual connection
     cnx = MySQLdb.connect(database="MySQL_Database")
-    instrumented_cnx = MySQLClientInstrumentor.instrument_connection(
+    instrumented_cnx = MySQLClientInstrumentor().instrument_connection(
         cnx,
         enable_commenter=True,
         commenter_options={
@@ -195,8 +195,8 @@ def instrument_connection(
                 SQL queries will be enriched with contextual information (e.g., database client details).
                 Default is `None`.
             commenter_options:
-                A dictionary of configuration options for SQLCommenter. This allows you to customize
-                metadata appended to queries. Possible options include:
+                A dictionary of configuration options for SQLCommenter. All options are enabled (True) by default.
+                This allows you to customize metadata appended to queries. Possible options include:
 
                     - `db_driver`: Adds the database driver name and version.
                     - `dbapi_threadsafety`: Adds threadsafety information.

instrumentation/opentelemetry-instrumentation-psycopg/src/opentelemetry/instrumentation/psycopg/__init__.py

@@ -105,7 +105,7 @@
 
     # Alternatively, use instrument_connection for an individual connection
     cnx = psycopg.connect(database='Database')
-    instrumented_cnx = instrument_connection(cnx)
+    instrumented_cnx = PsycopgInstrumentor().instrument_connection(cnx)
     cursor = instrumented_cnx.cursor()
     cursor.execute("INSERT INTO test (testField) VALUES (123)")
     cursor.close()

instrumentation/opentelemetry-instrumentation-psycopg2/src/opentelemetry/instrumentation/psycopg2/__init__.py

@@ -105,7 +105,7 @@
 
     # Alternatively, use instrument_connection for an individual connection
     cnx = psycopg2.connect(database='Database')
-    instrumented_cnx = Psycopg2Instrumentor.instrument_connection(cnx)
+    instrumented_cnx = Psycopg2Instrumentor().instrument_connection(cnx)
     cursor = instrumented_cnx.cursor()
     cursor.execute("INSERT INTO test (testField) VALUES (123)")
     cursor.close()

instrumentation/opentelemetry-instrumentation-sqlite3/src/opentelemetry/instrumentation/sqlite3/__init__.py

@@ -44,7 +44,7 @@
 
     # Alternatively, use instrument_connection for an individual connection
     conn = sqlite3.connect(":memory:")
-    instrumented_connection = SQLite3Instrumentor.instrument_connection(conn)
+    instrumented_connection = SQLite3Instrumentor().instrument_connection(conn)
     cursor = instrumented_connection.cursor()
     cursor.execute("CREATE TABLE test (testField INTEGER)")
     cursor.execute("INSERT INTO test (testField) VALUES (123)")
@@ -122,10 +122,6 @@ def instrument_connection(
             An instrumented SQLite connection that supports
             telemetry for tracing database operations.
 
-        Notes:
-            - Instrumentation must be explicitly applied to the connection object
-              for tracing to work. This is not done automatically by simply calling
-              `SQLite3Instrumentor().instrument()`.
         """
         return dbapi.instrument_connection(
             __name__,