Add homepage link to “Kernel Heap” blog post of os.phil-opp.com

Author: phil-opp

Cargo.toml

@@ -9,6 +9,7 @@ keywords = ["allocator", "no_std", "malloc", "heap", "kernel"]
 
 repository = "https://github.com/phil-opp/linked-list-allocator"
 documentation = "http://phil-opp.github.io/linked-list-allocator/linked_list_allocator/index.html"
+homepage = "http://os.phil-opp.com/kernel-heap.html#a-better-allocator"
 
 exclude = [
     "scripts/*"