Milestones.md

@@ -15,6 +15,8 @@ flowchart LR
   classDef done color:#000,fill:#6e0,stroke:#000,stroke-width:2px;
   classDef prog color:#000,fill:#fd0,stroke:#000,stroke-width:2px;
 
+  linkStyle default stroke:#000,stroke-width:2px;
+
   funding:::misc
   subgraph funding [Funding]
     f1(Acquire funding for further<br>development and maintenance)