Minor fixes to example docs #1112

Job	Run time
Ruby 3.2 / semian	2m 52s
Ruby 3.1 / semian	3m 5s
Ruby 3.0 / semian	2m 53s
Ruby 2.7 / semian	2m 58s
Ruby 3.2 / grpc	6m 32s
Ruby 3.2 / mysql2	1m 19s
Ruby 3.2 / net_http	57s
Ruby 3.2 / rails_mysql2	45s
Ruby 3.2 / rails_trilogy	1m 19s
Ruby 3.2 / redis_4	59s
Ruby 3.2 / redis_5	57s
Ruby 3.2 / redis_client	1m 6s
Ruby 3.2 / activerecord_trilogy_adapter	1m 44s
Ruby 3.1 / grpc	1m 23s
Ruby 3.1 / mysql2	1m 28s
Ruby 3.1 / net_http	1m 23s
Ruby 3.1 / rails_mysql2	58s
Ruby 3.1 / rails_trilogy	1m 29s
Ruby 3.1 / redis_4	59s
Ruby 3.1 / redis_5	1m 0s
Ruby 3.1 / redis_client	59s
Ruby 3.1 / activerecord_trilogy_adapter	1m 47s
Ruby 3.0 / grpc	1m 9s
Ruby 3.0 / mysql2	1m 13s
Ruby 3.0 / net_http	1m 1s
Ruby 3.0 / rails_mysql2	53s
Ruby 3.0 / rails_trilogy	1m 9s
Ruby 3.0 / redis_4	1m 1s
Ruby 3.0 / redis_5	1m 4s
Ruby 3.0 / redis_client	1m 2s
Ruby 3.0 / activerecord_trilogy_adapter	1m 38s
Ruby 2.7 / grpc	1m 14s
Ruby 2.7 / mysql2	1m 10s
Ruby 2.7 / net_http	59s
Ruby 2.7 / rails_mysql2	56s
Ruby 2.7 / rails_trilogy	1m 9s
Ruby 2.7 / redis_4	1m 3s
Ruby 2.7 / redis_5	1m 2s
Ruby 2.7 / redis_client	1m 6s
Ruby 2.7 / activerecord_trilogy_adapter	1m 37s
	59m 18s

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