Remove unnecessary --save flags from npm install commands.

While it used to be required to pass the `--save` flag in order to actually
write the dependency to the project's `package.json` file, this is no longer
the case in recent versions of npm.

README.md

@@ -27,7 +27,7 @@ Apollo Server is super easy to set up. Just `npm install apollo-server-<integrat
 
 ### Installation
 
-Run `npm install --save apollo-server-<integration>` and you're good to go!
+Run `npm install apollo-server-<integration>` and you're good to go!
 
 ```js
 const { ApolloServer, gql } = require('apollo-server');
@@ -82,7 +82,7 @@ server.listen().then(({ url }) => {
 
 ## Integrations
 
-Often times, Apollo Server needs to be run with a particular integration. To start, run `npm install --save apollo-server-<integration>` where `apollo-server-<integration>` is one of the following:
+Often times, Apollo Server needs to be run with a particular integration. To start, run `npm install apollo-server-<integration>` where `apollo-server-<integration>` is one of the following:
 
 - `apollo-server-express`
 - `apollo-server-koa`

docs/source/essentials/server.md

@@ -15,11 +15,11 @@ We need to install two packages to use Apollo Server, and a third package when u
 
 To install, run:
 
-    npm install --save apollo-server graphql
+    npm install apollo-server graphql
 
 When adding Apollo Server to an existing application, a corresponding HTTP server support package needs to be installed as well.  For example, for Express this is:
 
-    npm install --save apollo-server-express graphql
+    npm install apollo-server-express graphql
 
 
 <h2 id="creating">Creating a server</h2>

docs/source/features/scalars-enums.md

@@ -26,7 +26,7 @@ Here, we'll take the [graphql-type-json](https://github.com/taion/graphql-type-j
 Add the `graphql-type-json` package to the project's dependencies :
 
 ```shell
-$ npm install --save graphql-type-json
+$ npm install graphql-type-json
 ```
 
 In code, require the type defined by in the npm package and use it :

docs/source/getting-started.md

@@ -46,7 +46,7 @@ While you could write all of the necessary code yourself, these two dependencies
 
 Run the following command to install both of these dependencies and save them in the project:
 
-    npm install --save apollo-server graphql
+    npm install apollo-server graphql
 
 In the next step, we'll use these dependencies to create a server which processes and responds to incoming GraphQL requests.
 

docs/source/migration-two-dot.md

@@ -55,7 +55,7 @@ Check out the following changes for Apollo Server 2.0.
 
 With the middleware option used by Apollo Server 1.0 users, it is necessary to install the 2.0 version of `apollo-server-express`.  To do this, install via the terminal:
 
-    npm install --save apollo-server-express graphql
+    npm install apollo-server-express graphql
 
 The changes are best shown by comparing the before and after of the application.
 
@@ -136,7 +136,7 @@ For these cases, it's possible to remove the existing `apollo-server-{integratio
 
     npm uninstall --save apollo-server-express
 
-    npm install --save apollo-server graphql
+    npm install apollo-server graphql
 
 An implementation with this pattern would look like:
 

packages/apollo-server-micro/README.md

@@ -16,7 +16,7 @@ handles incoming GraphQL requests via the default `/graphql` endpoint.
 1) Package installation.
 
 ```sh
-npm install --save micro apollo-server-micro graphql
+npm install micro apollo-server-micro graphql
 ```
 
 2) `index.js`
@@ -66,7 +66,7 @@ microservice, using [`micro-cors`](https://github.com/possibilities/micro-cors):
 1) Package installation.
 
 ```sh
-npm install --save micro micro-cors apollo-server-micro graphql
+npm install micro micro-cors apollo-server-micro graphql
 ```
 
 2) `index.js`
@@ -117,7 +117,7 @@ uses a custom GraphQL endpoint path:
 1) Package installation.
 
 ```sh
-npm install --save micro apollo-server-micro graphql
+npm install micro apollo-server-micro graphql
 ```
 
 2) `index.js`
@@ -168,7 +168,7 @@ fully custom routing:
 1) Package installation.
 
 ```sh
-npm install --save micro microrouter apollo-server-micro graphql
+npm install micro microrouter apollo-server-micro graphql
 ```
 
 2) `index.js`