Fix sanitize_sql_like with escape_character doc [ci-skip]
Fix sanitize_sql_like with escape_character doc [ci-skip]

When an `escape_character` is specified, `sanitize_sql_like` will escape
occurrences of it rather than `"\\"`.

This commit also modifies the examples to demonstrate that behavior.

kmcphillips/rails,georgeclaghorn/rails,Erol/rails,rails/rails,BlakeWilliams/rails,Edouard-chin/rails,Erol/rails,rails/rails,MSP-Greg/rails,esparta/rails,kmcphillips/rails,georgeclaghorn/rails,MSP-Greg/rails,yahonda/rails,yahonda/rails,Erol/rails,rails/rails,esparta/rails,kmcphillips/rails,yawboakye/rails,georgeclaghorn/rails,BlakeWilliams/rails,yawboakye/rails,Edouard-chin/rails,georgeclaghorn/rails,Edouard-chin/rails,BlakeWilliams/rails,yahonda/rails,yawboakye/rails,MSP-Greg/rails,rails/rails,esparta/rails,Erol/rails,MSP-Greg/rails,kmcphillips/rails,esparta/rails,BlakeWilliams/rails,yahonda/rails,Edouard-chin/rails,yawboakye/rails