update readme file

spanner/webapp/README.md

@@ -1,50 +1,3 @@
-#Setting Autocomplete with Google Cloud Spanner and Google App Engine Flex
+# Search on Google Cloud Platform - Spanner
 
-##Creating Spanner instance
-In console.cloud.google.com on the left top menu, go to Spanner section, click on 'Create new instance'. 
-I called instance 'eshopxx', based on variable in file search.spanner_search.py.
-
-##Creating Service Account
-in Cloud Console again, when you go to IAM -> Service Accounts. You need to click on Create, give it some name and select Role.
-You need to go to Spanner part and set Role to be Spanner Admin (the highest role). Also check option to furnish (download)
-Json file with secret (you can download only once that file). For sake of simplicity / compatibility rename it to 'service_account.json'
-
-##Local setup
-I'm using here Google App Engine Flexible since provided library doesn't work on Standard (I would need to use REST API)
-You need to install requirements under virtualenv (for Python 3)
-
-```pip install -r requirements.txt```
-
-It's normal Flask application, so locally you can run it with:
-
-
-```
-export FLASK_APP=main.py
-python -m flask run
-```
-
-##Uploading data
-in file 'upload_products.py' you need to set again url for your app and execute file with python to upload data.
-It's printing every respone (200, ok) and also number of so far deployed products
-
-##Deploying
-since this is Google App Engine Flexible, there is a little bit different approach for deployment
-
-```gcloud app deploy app.yaml --verbosity=debug  --promote --version=spanner``` 
-
-It basically creates Docker image under the hood and deploys it.
-I'm not sure if something else needs to be enabled (since lots of things are changing, it's hard to catch up everything)...
-flags mean following:
---verbosity - just to have some idea what's going during deployment
---promote - it promotes this version to handle traffic on main url i.e. http://<project-id>.appspot.com/
-otherwise second working url is also http://<version>.<project-id>.appspot.com
---version - name of version. if ommited, version name will be timestamp or something like that.
-
-##Working with app
-in main.py you have all routes and description of what they do so it should be self explaining
-
-##Important!!!
-Google App Engine Flex(ible) has different properties than Standard. One of them is that one instance is always alive, 
-so when you are done with this, delete GAE instance and also Spanner, since it costs ~0.9$ per one hour :)
-
-Hopefully I didn't forgot anything
+More details on [https://www.the-swamp.info/blog/search-google-cloud-platform-spanner/](https://www.the-swamp.info/blog/search-google-cloud-platform-spanner/)