remove yr_finalize_thread from docs
update documentation to not require any threads to call yr_finalize_thread anymore
@@ -16,8 +16,8 @@ data structures. Its counterpart is :c:func:`yr_finalize`, which must be called
when you are finished using the library.
In a multi-threaded program only the main thread must call
-:c:func:`yr_initialize` and :c:func:`yr_finalize`, but any additional thread
-using the library must call :c:func:`yr_finalize_thread` before exiting.
+:c:func:`yr_initialize` and :c:func:`yr_finalize`.
+No additional work is required from other threads using the library.
Compiling rules
