[readme] add ros1 branch link

ThomasDuvinage · ThomasDuvinage · commit 8953bb19f448 · 2025-03-13T14:30:50.000+09:00
diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-This is the branch for ROS2; use the ros1 branch for ROS1.
+This is the branch for ROS2; use the [ros1](https://github.com/isri-aist/QpSolverCollection/tree/ros1) branch for ROS1.
 
 # [QpSolverCollection](https://github.com/isri-aist/QpSolverCollection)
 Unified C++ interface for quadratic programming solvers

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-This is the branch for ROS2; use the ros1 branch for ROS1.`
	`1`	`+This is the branch for ROS2; use the [ros1](https://github.com/isri-aist/QpSolverCollection/tree/ros1) branch for ROS1.`
`2`	`2`
`3`	`3`	`# [QpSolverCollection](https://github.com/isri-aist/QpSolverCollection)`
`4`	`4`	`Unified C++ interface for quadratic programming solvers`