docs(CompilePipeline): correct compiliation to compilation

Closes angular#4072

Author: Lukas Ruebbelke

modules/angular2/src/core/render/dom/compiler/compile_pipeline.ts

@@ -40,7 +40,7 @@ export class CompilePipeline {
  if (current.compileChildren) {
  var node = DOM.firstChild(DOM.templateAwareRoot(current.element));
  while (isPresent(node)) {
- // compiliation can potentially move the node, so we need to store the
+ // compilation can potentially move the node, so we need to store the
  // next sibling before recursing.
  var nextNode = DOM.nextSibling(node);
  if (DOM.isElementNode(node)) {