Java 11 ReadMe updates (GoogleCloudPlatform#1401)

* Update readmes

* Fix XML and ReadMe instructions

Author: averikitsch

appengine-java11/README.md

@@ -1,6 +1,6 @@
 # Google App Engine Standard Environment Samples for Java 11
 
-<a href="https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/ludoch/samples&page=editor&open_in_editor=appengine-java11/README.md">
+<a href="https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&page=editor&open_in_editor=appengine-java11/README.md">
 <img alt="Open in Cloud Shell" src ="http://gstatic.com/cloudssh/images/open-btn.png"></a>
 
 This is a repository that contains Java code samples for [Google App Engine][ae-docs]

appengine-java11/gaeinfo/README.md

@@ -1,11 +1,25 @@
 # Google App Engine Information App for Java11
 
-<a href="https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/ludoch/samples&page=editor&open_in_editor==appengine-java11/gaeinfo/README.md">
+<a href="https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&page=editor&open_in_editor==appengine-java11/gaeinfo/README.md">
 <img alt="Open in Cloud Shell" src ="http://gstatic.com/cloudssh/images/open-btn.png"></a>
 
 This sample demonstrates how to show all system environment metadata and properties on Google App
 Engine standard app.
 
+## Setup your Google Cloud Platform Project
+
+* If you haven't already, Download and initialize the [Cloud SDK](https://cloud.google.com/sdk/)
+
+    `gcloud init`
+
+* If you haven't already, Create an App Engine app within the current Google Cloud Project
+
+    `gcloud app create`
+
+* If you haven't already, Setup [Application Default Credentials](https://developers.google.com/identity/protocols/application-default-credentials)
+
+    `gcloud auth application-default login`
+
 ## Setup the Sample App
 
 - Copy the sample apps to your local machine:
@@ -26,20 +40,6 @@ Main class to your classpath:
   mvn package
 ```
 
-## Setup you Google Cloud Project
-
-* If you haven't already, Download and initialize the [Cloud SDK](https://cloud.google.com/sdk/)
-
-    `gcloud init`
-
-* If you haven't already, Create an App Engine app within the current Google Cloud Project
-
-    `gcloud app create`
-
-* If you haven't already, Setup [Application Default Credentials](https://developers.google.com/identity/protocols/application-default-credentials)
-
-    `gcloud auth application-default login`
-
 ## Deploy
 
 - Deploy to App Engine standard environment using the following Maven command.

appengine-java11/guestbook-cloud-firestore/README.md

@@ -11,7 +11,7 @@ This sample also uses packages from [Guava](https://github.com/google/guava),
 which provides some basic utility libraries and collections from Google's core
 libraries.
 
-## Setup
+## Setup your Google Cloud Platform Project
 
 * Download and initialize the [Cloud SDK](https://cloud.google.com/sdk/)
 
@@ -22,6 +22,26 @@ libraries.
    gcloud app create
 ```
 
+## Setup the Sample App
+
+- Copy the sample apps to your local machine:
+```
+  git clone https://github.com/GoogleCloudPlatform/java-docs-samples
+```
+
+- Add the [appengine-simple-jetty-main](../README.md#appengine-simple-jetty-main)
+Main class to your classpath:
+```
+  cd java-docs-samples/appengine-java11/appengine-simple-jetty-main
+  mvn install
+```
+
+- Move into the `appengine-java11/guestbook-cloud-firestore` directory and compile the app:
+```
+  cd ../guestbook-cloud-firestore
+  mvn package
+```
+
 * Setup [Application Default Credentials](https://developers.google.com/identity/protocols/application-default-credentials) by
 [creating a service account](https://cloud.google.com/docs/authentication/production#creating_a_service_account) and downloading the JSON key file.
 

appengine-java11/guestbook-cloud-firestore/src/main/webapp/WEB-INF/web.xml

@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
 <!--
  Copyright 2019 Google LLC
  Licensed under the Apache License, Version 2.0 (the "License");
@@ -10,7 +11,6 @@
  See the License for the specific language governing permissions and
  limitations under the License.
 -->
-<?xml version="1.0" encoding="utf-8"?>
 <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee

appengine-java11/spanner/README.md

@@ -10,7 +10,7 @@ from [Google App Engine standard Java 11 environment][ae-docs].
 [ae-docs]: https://cloud.google.com/appengine/docs/java/
 
 
-## Setup
+## Setup your Google Cloud Platform Project
 - Install the [Google Cloud SDK](https://cloud.google.com/sdk/) and run:
 ```
    gcloud init