feature: graph header (logo) links to main repo

Author: Kshitij978

src/svgs.ts

@@ -42,6 +42,16 @@ export const graphSvg = (props: graphArgs) => `
 ${props.title}
  </h1>
  </foreignObject>
+
+ <a href="https://github.com/Ashutosh00710/github-readme-activity-graph">
+ <image 
+ href="https://raw.githubusercontent.com/Ashutosh00710/github-readme-activity-graph/main/asset/logo.svg" 
+ x="${props.width-80}" 
+ y="20" 
+ height="30px" 
+ width="30px" />
+ </a>
+
 ${props.line}
  </svg>
 `;