Update TGS DMAPI

code/modules/tgs/includes.dm

@@ -14,4 +14,4 @@
 #include "v5\_defines.dm"
 #include "v5\api.dm"
 #include "v5\commands.dm"
-#include "v5\undef.dm"
+#include "v5\undefs.dm"

code/modules/tgs/v5/README.md

@@ -0,0 +1,8 @@
+# DMAPI V4
+
+This DMAPI implements bridge requests using HTTP GET requests to TGS. It has no security restrictions.
+
+- [_defines.dm](./_defines.dm) contains constant definitions.
+- [api.dm](./api.dm) contains the bulk of the API code.
+- [commands.dm](./commands.dm) contains functions relating to `/datum/tgs_chat_command`s.
+- [undefs.dm](./undefs.dm) Undoes the work of `_defines.dm`.