updated readme

.cspell/words.txt

@@ -136,6 +136,7 @@ linkflags
 mbig
 msvc
 msvcr120
+msys2
 mtune
 nana
 ncrypt
@@ -148,6 +149,7 @@ oleaut32
 openal_version
 openssldir
 pkgconfig
+plex
 project_enable_fontconfig
 project_enable_gtkmm
 project_enable_libdsm
@@ -160,6 +162,7 @@ puint32
 pvoid
 pwstr
 remote_winfsp
+renterd
 richtext
 rocksdb_library
 rpcrt4
@@ -211,4 +214,4 @@ wsign-conversion
 wunused
 wuseless
 wxwidgets_version
-xattr
+xattr