doc: update references to section which has been renamed

doc/chapters/advanced-api.texi

@@ -160,7 +160,7 @@ struct starpu_complex_interface
 @end cartouche
 
 Registering such a data to StarPU is easily done using the function
-@code{starpu_data_register} (@pxref{Basic Data Library API}). The last
+@code{starpu_data_register} (@pxref{Basic Data Management API}). The last
 parameter of the function, @code{interface_complex_ops}, will be
 described below.
 

doc/chapters/c-extensions.texi

@@ -321,7 +321,7 @@ simple way to allocate storage for arrays on the heap:
 This attributes applies to local variables with an array type.  Its
 effect is to automatically allocate the array's storage on
 the heap, using @code{starpu_malloc} under the hood (@pxref{Basic Data
-Library API, starpu_malloc}).  The heap-allocated array is automatically
+Management API, starpu_malloc}).  The heap-allocated array is automatically
 freed when the variable's scope is left, as with
 automatic variables.