GitLab

* doc/lispref/searching.texi (String Search): Add xref to Emacs manual.
Copyedits.  Mention the function word-search-regexp.
(Searching and Case): Add xref to Emacs manual.  Copyedits.

* src/search.c (Fword_search_backward_lax, Fword_search_forward_lax):
Doc fixes.