Update docs/README.md (#1669)

Update some links

Author: Naoki Sekiguchi

docs/README.md

@@ -21,11 +21,13 @@ Vue Test Utils is the official unit testing utility library for Vue.js.
   - [renderToString](api/renderToString.md)
   - [Mounting Options](api/options.md)
     - [context](api/options.md#context)
+    - [data](api/options.md#data)
     - [slots](api/options.md#slots)
     - [scopedSlots](api/options.md#scopedslots)
     - [stubs](api/options.md#stubs)
     - [mocks](api/options.md#mocks)
     - [localVue](api/options.md#localvue)
+    - [attachTo](api/options.md#attachto)
     - [attachToDocument](api/options.md#attachtodocument)
     - [attrs](api/options.md#attrs)
     - [propsData](api/options.md#propsdata)
@@ -37,16 +39,19 @@ Vue Test Utils is the official unit testing utility library for Vue.js.
     - [attributes](api/wrapper/attributes.md)
     - [classes](api/wrapper/classes.md)
     - [contains](api/wrapper/contains.md)
+    - [destroy](api/wrapper/destroy.md)
     - [emitted](api/wrapper/emitted.md)
     - [emittedByOrder](api/wrapper/emittedByOrder.md)
     - [exists](api/wrapper/exists.md)
-    - [destroy](api/wrapper/destroy.md)
     - [find](api/wrapper/find.md)
     - [findAll](api/wrapper/findAll.md)
+    - [findAllComponents](api/wrapper/findAllComponents.md)
+    - [findComponent](api/wrapper/findComponent.md)
     - [get](api/wrapper/get.md)
     - [html](api/wrapper/html.md)
     - [is](api/wrapper/is.md)
     - [isEmpty](api/wrapper/isEmpty.md)
+    - [isVisible](api/wrapper/isVisible.md)
     - [isVueInstance](api/wrapper/isVueInstance.md)
     - [name](api/wrapper/name.md)
     - [props](api/wrapper/props.md)
@@ -58,23 +63,21 @@ Vue Test Utils is the official unit testing utility library for Vue.js.
     - [setValue](api/wrapper/setValue.md)
     - [text](api/wrapper/text.md)
     - [trigger](api/wrapper/trigger.md)
-    - [isVisible](api/wrapper/isVisible.md)
   - [WrapperArray](api/wrapper-array/)
     - [at](api/wrapper-array/at.md)
     - [contains](api/wrapper-array/contains.md)
-    - [exists](api/wrapper/exists.md)
     - [destroy](api/wrapper-array/destroy.md)
     - [filter](api/wrapper-array/filter.md)
     - [is](api/wrapper-array/is.md)
     - [isEmpty](api/wrapper-array/isEmpty.md)
+    - [isVisible](api/wrapper-array/isVisible.md)
     - [isVueInstance](api/wrapper-array/isVueInstance.md)
     - [setChecked](api/wrapper-array/setChecked.md)
     - [setData](api/wrapper-array/setData.md)
     - [setMethods](api/wrapper-array/setMethods.md)
     - [setProps](api/wrapper-array/setProps.md)
     - [setValue](api/wrapper-array/setValue.md)
     - [trigger](api/wrapper-array/trigger.md)
-    - [isVisible](api/wrapper-array/isVisible.md)
   - [components](api/components/)
     - [RouterLinkStub](api/components/RouterLinkStub.md)
   - [Selectors](api/selectors.md)