Add package-lock.json, fix readme

README.md

@@ -11,7 +11,7 @@ In SAP Business Application Studio, open a terminal.
 Then clone the repo with this specific branch:
 
 ```sh
-git clone https://github.com/sap-samples/cloud-cap-samples -b OpenSAP-week3-unit5
+git clone https://github.com/sap-samples/cloud-cap-samples -b openSAP-week3-unit5
 cd cloud-cap-samples
 ```
 
@@ -44,7 +44,7 @@ Clean-up the CF space in your trial account if you already used it before. Make
 
 Generation of the XSUAA service configuration file xs-security.json:
 ```sh
-cds compile srv/ --to xsuaa > xs-security.json 
+cds compile srv/ --to xsuaa > xs-security.json
 ```
 
 In this unit we use  [MTA](https://sap.github.io/cloud-mta-build-tool/) to do the deployment to CF

package.json

@@ -11,8 +11,8 @@
     "bookshop": "cds watch packages/bookshop"
   },
   "dependencies": {
-    "@sap/cds": "latest",
-    "express": "*"
+    "@sap/cds": "^3",
+    "express": "^4"
   },
   "devDependencies": {
     "sqlite3": "*"

packages/bookshop/package.json

@@ -4,10 +4,10 @@
     "description": "A simple bookshop application, build in a self-contained all-in-one fashion, i.e. w/o reusing other packages.",
     "license": "SAP SAMPLE CODE LICENSE",
     "dependencies": {
-        "@sap/cds": "latest",
-        "express": "*",
-        "passport": "^0.4.1",
-        "hdb": "^0.17.1"
+       "@sap/cds": "^3",
+       "express": "^4",
+       "passport": "^0.4.1",
+       "hdb": "^0.17.1"
     },
     "scripts": {
         "start": "cds run --in-memory?",