Turbo Pascal 3 didn't have integrated help (hypertext or not), it was introduced in Turbo Pascal 4 (which itself was AFAIK in general a big rewrite of the compiler and IDE).
Though the integrated help really improved with version 6 (when Turbo Vision was also introduced) since you could move a cursor freely inside the help window as if it was an editor, select and copy text, the help text was much more detailed and more organized and every function/procedure also had a small example showing its use (version 5.5 also had examples but the overall help was much more terse).