docs: fix readme files of default resolver/fetcher

packages/default-fetcher/README.md

@@ -2,8 +2,8 @@
 
 > pnpm's default package fetcher
 
-<!--@shields('npm', 'travis')-->
-[![npm version](https://img.shields.io/npm/v/@pnpm/default-fetcher.svg)](https://www.npmjs.com/package/@pnpm/default-fetcher) [![Build Status](https://img.shields.io/travis/pnpm/default-fetcher/master.svg)](https://travis-ci.org/pnpm/default-fetcher)
+<!--@shields('npm')-->
+[![npm version](https://img.shields.io/npm/v/@pnpm/default-fetcher.svg)](https://www.npmjs.com/package/@pnpm/default-fetcher)
 <!--/@-->
 
 ## Installation

packages/default-fetcher/shrinkwrap.yaml

@@ -1,4 +1,5 @@
 dependencies:
+  '@pnpm/default-fetcher': 'link:../../../__package_previews__/default-fetcher/@pnpm/default-fetcher'
   '@pnpm/fetcher-base': 1.0.0
   '@pnpm/git-fetcher': 1.0.0
   '@pnpm/resolver-base': 1.1.0

packages/default-resolver/README.md

@@ -2,8 +2,8 @@
 
 > pnpm's default package resolver
 
-<!--@shields('npm', 'travis')-->
-[![npm version](https://img.shields.io/npm/v/@pnpm/default-resolver.svg)](https://www.npmjs.com/package/@pnpm/default-resolver) [![Build Status](https://img.shields.io/travis/pnpm/default-resolver/master.svg)](https://travis-ci.org/pnpm/default-resolver)
+<!--@shields('npm')-->
+[![npm version](https://img.shields.io/npm/v/@pnpm/default-resolver.svg)](https://www.npmjs.com/package/@pnpm/default-resolver)
 <!--/@-->
 
 ## Installation

packages/default-resolver/shrinkwrap.yaml

@@ -1,5 +1,5 @@
 dependencies:
-  '@pnpm/default-resolver': 'link:../__package_previews__/default-resolver/@pnpm/default-resolver'
+  '@pnpm/default-resolver': 'link:../../../__package_previews__/default-resolver/@pnpm/default-resolver'
   '@pnpm/git-resolver': 0.3.8
   '@pnpm/local-resolver': 1.0.0
   '@pnpm/npm-resolver': 2.1.5