doc: Fix typos from codespell (!21626) · Merge requests · bitcoin / bitcoin · GitLab

Placeholder Yerzhan Mazhkenov requested to merge github/fork/yerzhan7/master into master Apr 06, 2021

Typos from codespell linter: https://cirrus-ci.com/task/6677401661865984?logs=lint#L856

txrequest.cpp: annoucements ==> announcements
contrib/guix/README.md:298: stil ==> still
contrib/guix/guix-build:18: invokable ==> invocable
contrib/guix/libexec/prelude.bash:12: invokable ==> invocable
src/test/fuzz/tx_pool.cpp:37: acess ==> access
src/txorphanage.h:29: orginating ==> originating