docs: fix Cloud Shell badge to HTTPS and correct CONTRIBUTING.md relative path

- Use https:// for the Cloud Shell badge image across all new product READMEs
- Fix CONTRIBUTING.md relative path from ../../ to ../ (all are top-level dirs)

Co-authored-by: openhands <openhands@all-hands.dev>

Author: chiragjangiir

bigquery/README.md

@@ -1,7 +1,7 @@
 # Google BigQuery
 
 <a href="https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&page=editor&open_in_editor=bigquery/README.md">
-<img alt="Open in Cloud Shell" src ="http://gstatic.com/cloudssh/images/open-btn.png"></a>
+<img alt="Open in Cloud Shell" src="https://gstatic.com/cloudssh/images/open-btn.png"></a>
 
 Google [BigQuery](https://cloud.google.com/bigquery/) is a serverless data warehouse
 for analytics over massive datasets. These sample Java applications demonstrate how to
@@ -47,4 +47,4 @@ mvn clean verify
 
 ## Contributing
 
-See the [contributor guide](../../CONTRIBUTING.md) for this repository.
+See the [contributor guide](../CONTRIBUTING.md) for this repository.

bigtable/README.md

@@ -1,7 +1,7 @@
 # Google Cloud Bigtable
 
 <a href="https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&page=editor&open_in_editor=bigtable/README.md">
-<img alt="Open in Cloud Shell" src ="http://gstatic.com/cloudssh/images/open-btn.png"></a>
+<img alt="Open in Cloud Shell" src="https://gstatic.com/cloudssh/images/open-btn.png"></a>
 
 Google [Bigtable](https://cloud.google.com/bigtable/) is a scalable NoSQL
 wide-column database for large analytical and operational workloads. These sample
@@ -52,4 +52,4 @@ mvn clean verify
 
 ## Contributing
 
-See the [contributor guide](../../CONTRIBUTING.md) for this repository.
+See the [contributor guide](../CONTRIBUTING.md) for this repository.

dialogflow-cx/README.md

@@ -1,7 +1,7 @@
 # Dialogflow CX
 
 <a href="https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&page=editor&open_in_editor=dialogflow-cx/README.md">
-<img alt="Open in Cloud Shell" src ="http://gstatic.com/cloudssh/images/open-btn.png"></a>
+<img alt="Open in Cloud Shell" src="https://gstatic.com/cloudssh/images/open-btn.png"></a>
 
 [Dialogflow CX](https://cloud.google.com/dialogflow/cx/docs) is a conversational
 AI platform for building advanced virtual agents with flows and pages. These sample
@@ -42,4 +42,4 @@ mvn clean verify
 
 ## Contributing
 
-See the [contributor guide](../../CONTRIBUTING.md) for this repository.
+See the [contributor guide](../CONTRIBUTING.md) for this repository.

dialogflow/README.md

@@ -1,7 +1,7 @@
 # Dialogflow
 
 <a href="https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&page=editor&open_in_editor=dialogflow/README.md">
-<img alt="Open in Cloud Shell" src ="http://gstatic.com/cloudssh/images/open-btn.png"></a>
+<img alt="Open in Cloud Shell" src="https://gstatic.com/cloudssh/images/open-btn.png"></a>
 
 [Dialogflow](https://cloud.google.com/dialogflow/) helps you build conversational
 interfaces for websites, mobile applications, and other platforms. These sample
@@ -37,4 +37,4 @@ mvn clean verify
 
 ## Contributing
 
-See the [contributor guide](../../CONTRIBUTING.md) for this repository.
+See the [contributor guide](../CONTRIBUTING.md) for this repository.

firestore/README.md

@@ -1,7 +1,7 @@
 # Cloud Firestore
 
 <a href="https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&page=editor&open_in_editor=firestore/README.md">
-<img alt="Open in Cloud Shell" src ="http://gstatic.com/cloudssh/images/open-btn.png"></a>
+<img alt="Open in Cloud Shell" src="https://gstatic.com/cloudssh/images/open-btn.png"></a>
 
 [Cloud Firestore](https://cloud.google.com/firestore/) is a flexible, scalable
 NoSQL document database for mobile, web, and server development. These sample
@@ -42,4 +42,4 @@ mvn clean verify
 
 ## Contributing
 
-See the [contributor guide](../../CONTRIBUTING.md) for this repository.
+See the [contributor guide](../CONTRIBUTING.md) for this repository.

pubsub/README.md

@@ -1,7 +1,7 @@
 # Google Cloud Pub/Sub
 
 <a href="https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&page=editor&open_in_editor=pubsub/README.md">
-<img alt="Open in Cloud Shell" src ="http://gstatic.com/cloudssh/images/open-btn.png"></a>
+<img alt="Open in Cloud Shell" src="https://gstatic.com/cloudssh/images/open-btn.png"></a>
 
 Google [Cloud Pub/Sub](https://cloud.google.com/pubsub/) is a messaging and
 event-streaming service for asynchronous communication between independent
@@ -38,4 +38,4 @@ mvn clean verify
 
 ## Contributing
 
-See the [contributor guide](../../CONTRIBUTING.md) for this repository.
+See the [contributor guide](../CONTRIBUTING.md) for this repository.

storage/README.md

@@ -1,7 +1,7 @@
 # Google Cloud Storage
 
 <a href="https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&page=editor&open_in_editor=storage/README.md">
-<img alt="Open in Cloud Shell" src ="http://gstatic.com/cloudssh/images/open-btn.png"></a>
+<img alt="Open in Cloud Shell" src="https://gstatic.com/cloudssh/images/open-btn.png"></a>
 
 Google [Cloud Storage](https://cloud.google.com/storage/) is unified object storage
 for developers and enterprises, from live data serving to data analytics and archival.
@@ -45,4 +45,4 @@ mvn clean verify
 
 ## Contributing
 
-See the [contributor guide](../../CONTRIBUTING.md) for this repository.
+See the [contributor guide](../CONTRIBUTING.md) for this repository.