[Docs] Minor doc updates across the board

.github/pull_request_template.md

@@ -24,9 +24,10 @@
 
 ## Type of change
 
-Select one or more:
+Select one or more from the following:
 
 - [ ] New feature, functionality or library
+- [ ] Consensus breaking; add the `consensus-breaking` label if so. See #791 for details
 - [ ] Bug fix
 - [ ] Code health or cleanup
 - [ ] Documentation

docusaurus/docs/explore/roadmap.md

@@ -3,7 +3,7 @@ title: Roadmap
 sidebar_position: 2
 ---
 
-# Roadmap
+## Roadmap
 
 See the Alpha TestNet #3 Announcement [here](https://medium.com/decentralized-infrastructure/pocket-network-shannon-update-alpha-testnet-3-eca539a9e111).
 

docusaurus/docs/explore/rpc.md

@@ -0,0 +1,36 @@
+---
+title: RPC Endpoints
+sidebar_position: 3
+---
+
+## TestNet RPC Endpoints
+
+We have provided `gRPC`, `JSON-RPC` and `REST` endpoints, which are available here:
+
+- `https://shannon-testnet-grove-seed-rpc.poktroll.com`
+- `https://shannon-testnet-grove-seed-grpc.poktroll.com`
+- `https://shannon-testnet-grove-seed-api.poktroll.com`
+
+You can review the difference between them in the [Cosmos SDK docs](https://docs.cosmos.network/main/learn/advanced/grpc_rest#comparison-table).
+
+### JSON-RPC
+
+Using `curl`:
+
+```bash
+curl -X POST https://shannon-testnet-grove-seed-rpc.poktroll.com/block
+```
+
+Using the `poktrolld` binary:
+
+```bash
+poktrolld query block --type=height 0 --node https://shannon-testnet-grove-seed-rpc.poktroll.com
+```
+
+### gRPC
+
+_TODO: Add a gRPC example_
+
+### REST
+
+_TODO: Add a REST example_

docusaurus/docs/explore/tools.md

@@ -3,7 +3,7 @@ title: Tools & References
 sidebar_position: 1
 ---
 
-# 🛠️ Tools & References <!-- omit in toc -->
+## 🛠️ Tools & References <!-- omit in toc -->
 
 - 🪙 [Shannon Token Faucet](https://faucet.testnet.pokt.network/)
 - 🗺️ [Shannon Explorer](https://shannon.testnet.pokt.network/poktroll/block)