added sharding and console.showLogs examples (#57)

Author: AlexGalichenko

docs/Formatters/console-formatter.md

@@ -15,7 +15,12 @@ To use formatter just add formatter section in config file
 ```javascript
 module.exports = {
     default: {
-        format: ['@qavajs/console-formatter']
+        format: ['@qavajs/console-formatter'],
+        formatOptions: {
+            console: {
+                showLogs: true //show cucumber logs
+            }
+        },
     }
 }
 ```

docs/Guides/parallel.md

@@ -41,3 +41,12 @@ Feature: Parallel
     When I type '$user.username' to 'Username Input'
     And I type '$user.password' to 'Password Input'
 ```
+
+### Test Sharding
+qavajs provides ability to shard your tests between different machines. To do so pass `--shard x/y` parameter in CLI,
+where x - current shard, y - total number of shards.
+
+```
+npx qavajs run --config config.js --shard 1/2
+npx qavajs run --config config.js --shard 2/2
+```