Apply walkthrough improvements (#1)

Set CDS version to 3.17.4 for generated projects
Mention Ports: Preview command from command palette
Fix screenshot of bookstore dependencies

exercises-java/exercise1/README.md

@@ -45,7 +45,8 @@ Before you can start using SAP Application Studio, you need to create your devel
 4. Now run:
 
  ```bash
- mvn -B archetype:generate -DarchetypeArtifactId=cds-services-archetype -DarchetypeGroupId=com.sap.cds -DarchetypeVersion=1.0.1 \
+ mvn -B archetype:generate -DarchetypeArtifactId=cds-services-archetype -DarchetypeGroupId=com.sap.cds \
+ -DarchetypeVersion=1.0.1 -DcdsVersion=3.17.4 \
  -DgroupId=com.sap.teched.cap -DartifactId=products-service -Dpackage=com.sap.teched.cap.productsservice
  ```
 
@@ -117,23 +118,23 @@ As you can see, the file does not contain CAP specific startup instructions. It
 
 1. To start the application, go to the root of your project (`cd ~/projects/products-service`) in the terminal and run `mvn clean spring-boot:run`
 
-2. A notifaction tab saying "A service is listenning to port 8080" will appear. 
+2. A notifaction tab saying "A service is listening to port 8080" will appear. 
 
  a. Choose `Expose and Open` and provide `app-port` as the unique description. 
 
  <img src="images/expose_open_port.png" width="75%" />
-
- b. Press `Enter` to open the application in a new tab.
-
- <img src="images/products_welcome_page.png" width="60%" />
-
+
   >In case you missed the notification tab "A service is listening to port 8080", you can reopen it:
  >  
  >1. From the main menu, go to **View**, **Find Command** to open the command palette.
  >
- >2. Type **Ports: Expose** and select or enter `8080`. Provide `app-port` as the unique description. 
+ >2. Type **Ports: Expose** and select or enter `8080`. Provide `app-port` as the unique description.
  >
- >From the command palette, you can also use the ports command to preview, unexpose and rename ports.
+ >3. If you do not see port `8080` listed in the **Ports: Expose** view, use **View**, **Find Command** again and type **Ports: Preview** instead. Then click on the port `8080` to open the application.
+ 
+ b. Press `Enter` to open the application in a new tab.
+
+ <img src="images/products_welcome_page.png" width="60%" />
 
 4. To inspect the OData metadata that is automatically served by the CAP Java runtime, either:
 

exercises-java/exercise3/README.md

@@ -24,7 +24,8 @@ For the bookstore, which you'll develop in this exercise we need to create and i
 3. Now that you are in the correct folder, run the following command:
 
  ```bash
- mvn -B archetype:generate -DarchetypeArtifactId=cds-services-archetype -DarchetypeGroupId=com.sap.cds -DarchetypeVersion=1.0.1 \
+ mvn -B archetype:generate -DarchetypeArtifactId=cds-services-archetype -DarchetypeGroupId=com.sap.cds \
+ -DarchetypeVersion=1.0.1 -DcdsVersion=3.17.4 \
  -DgroupId=com.sap.teched.cap -DartifactId=bookstore
  ```
 4. To open the bookstore project in a new workspace:
@@ -53,7 +54,7 @@ In the terminal run the following commands:
 
 If you open the `package.json` of your bookstore project, you'll see a dependency to `@sap/capire-products`.
 
-<img src="images/package_json_dependency.png" width="80%" />
+<img src="images/package_json_dependency.png" width="65%" />
 
 ## Define the domain model