fixed spelling.

.github/actions/spelling/expect.txt

@@ -0,0 +1,52 @@
+agentzh
+COMPAT
+csv
+dav
+dll
+DLUAJIT
+exe
+flv
+gcc
+github
+gmail
+gunzip
+gzip
+html
+http
+imagename
+imap
+IOCP
+ipv
+jit
+json
+Linux
+lua
+luajit
+Microsoft
+mkdir
+MSYS
+nginx
+ngx
+NUMMODE
+objs
+openresty
+openssl
+pcre
+perl
+pid
+preread
+rds
+README
+realip
+sbin
+SETSIZE
+smtp
+ssl
+tarballs
+taskkill
+tasklist
+todo
+toolchain
+xcflags
+Yichun
+zlib