Fix typos

doc/HACKING/ReleasingTor.md

doc/HACKING/WritingTests.md

src/app/config/config.c

src/app/config/resolve_addr.c

src/core/or/congestion_control_common.c

src/core/or/congestion_control_st.h

src/core/or/congestion_control_vegas.c

src/core/or/connection_st.h

src/core/or/relay.c

src/core/or/sendme.c

src/feature/client/entrynodes.c

src/feature/relay/dns.c

src/test/test_channelpadding.c

src/test/test_config.c

src/test/test_dir_handle_get.c

src/test/test_hs_control.c

src/test/test_periodic_event.c