[EC Api] - Added: Ledger eras

Author: emmanuel.ameh@iohk.io

content/article/ledger-eras.md

@@ -24,73 +24,23 @@ When new functionality needs to be introduced to Cardano, the ledger undergoes a
 
 ## Development phases and ledger eras
 
-<table>
-  <thead>
-    <tr>
-      <th>Development phase</th>
-      <th>Focus</th>
-      <th>Ledger era(s) and functionality introduced</th>
-      <th>Upgrade names (examples)</th>
-    </tr>
-  </thead>
-  <tbody>
-    <tr>
-      <td><b>Byron</b></td>
-      <td>Foundational layer</td>
-      <td>Byron ledger era: ada transactions, Daedalus and Yoroi wallets, federated consensus</td>
-      <td>Byron hard fork</td>
-    </tr>
-    <tr>
-      <td><b>Shelley</b></td>
-      <td>Decentralization</td>
-      <td>Shelley ledger: stake pools, delegation, community-led block production</td>
-      <td>Shelley hard fork</td>
-    </tr>
-    <tr>
-      <td><b>Goguen</b></td>
-      <td>Smart contracts</td>
-      <td>
-        <ul>
-          <li>Allegra: token locking</li>
-          <li>Mary: native tokens and multi-asset support</li>
-          <li>Alonzo: Plutus smart contracts</li>
-        </ul>
-      </td>
-      <td>Allegra, Mary, and Alonzo hard forks</td>
-    </tr>
-    <tr>
-      <td><b>Basho</b></td>
-      <td>Scalability and efficiency</td>
-      <td>Babbage ledger era: reference scripts, inline datums, reference inputs</td>
-      <td>Known as the Vasil upgrade</td>
-    </tr>
-    <tr>
-      <td><b>Voltaire</b></td>
-      <td>Governance</td>
-      <td>
-        Conway ledger era: on-chain governance via 
-        <a href="https://cips.cardano.org/cips/cip1694">CIP-1694</a>
-        <ul>
-          <li><b>Chang upgrade</b>: initiated Conway ledger era and introduced the first set of on-chain governance capabilities</li>
-          <li><b>Plomin upgrade</b>: extended Conway by enabling the full set of governance actions and decentralized representatives (DReps) on mainnet (epoch 537, protocol version 10.0)</li>
-        </ul>
-      </td>
-      <td>Chang and Plomin upgrades</td>
-    </tr>
-    <tr>
-      <td><b>Future</b></td>
-      <td>Ongoing roadmap</td>
-      <td>
-        <ul>
-          <li><b>Dijkstra</b> (planned): Plutus v4, consensus and ledger integration, Conway refactors for transition</li>
-          <li><b>Euler</b> (planned): scope TBD</li>
-        </ul>
-      </td>
-      <td>Next hard fork name TBD</td>
-    </tr>
-  </tbody>
-</table>
-
+| Development phase | Focus | Ledger era(s) and functionality introduced | Upgrade names (examples) |
+| --- | --- | --- | --- |
+| **Byron** | Foundational layer | Byron ledger era: ada transactions, Daedalus and Yoroi wallets, federated consensus | Byron hard fork |
+| **Shelley** | Decentralization | Shelley ledger: stake pools, delegation, community-led block production | Shelley hard fork |
+| **Goguen** | Smart contracts | *   Allegra: token locking
+    
+*   Mary: native tokens and multi-asset support
+    
+*   Alonzo: Plutus smart contracts | Allegra, Mary, and Alonzo hard forks |
+| **Basho** | Scalability and efficiency | Babbage ledger era: reference scripts, inline datums, reference inputs | Known as the Vasil upgrade |
+| **Voltaire** | Governance | Conway ledger era: on-chain governance via [CIP-1694](https://cips.cardano.org/cips/cip1694)
+*   **Chang upgrade**: initiated Conway ledger era and introduced the first set of on-chain governance capabilities
+    
+*   **Plomin upgrade**: extended Conway by enabling the full set of governance actions and decentralized representatives (DReps) on mainnet (epoch 537, protocol version 10.0) | Chang and Plomin upgrades |
+| **Future** | Ongoing roadmap | *   **Dijkstra** (planned): Plutus v4, consensus and ledger integration, Conway refactors for transition
+    
+*   **Euler** (planned): scope TBD | Next hard fork name TBD |
 
 **Hard fork upgrades** use distinct names for community communication (for example, Chang → Plomin). These names are always mapped internally to a ledger era and protocol version. Hard forks activate a ledger era and may also introduce additional intra-era changes.