chore: Automatically bump README.md version number (#83)

Author: unfunco

.github/release-please-config.json

@@ -22,6 +22,13 @@
         }
       ],
       "draft": false,
+      "extra-files": [
+        {
+          "glob": false,
+          "path": "README.md",
+          "type": "generic"
+        }
+      ],
       "extra-label": "automata 🤖,autorelease: pending,chore 🧹",
       "include-v-in-tag": true,
       "initial-version": "1.8.0",