Removed all mentions of "please" from docs and messages

[mdelapenya]

          Not a blocker, but I notice the use of "please" and future tense; 

• Using "please" is generally discouraged; see here for some more on that https://github.com/docker/cli/pull/5040#issuecomment-2113053344
• In tech docs it's encouraged to use present tense (In this case "It runs ... "); tech docs tends to be in the here and now; if you do this, then this happens (then this "will happen" is both lengthier as well as gives the impression "eventually ... ")

Originally posted by @thaJeztah in https://github.com/testcontainers/testcontainers-go/pull/2586#discussion_r1640227006