Fix some typos in sparse tutorial.
Fix some typos in sparse tutorial.

toastedcrumpets/eigen,toastedcrumpets/eigen,ROCmSoftwarePlatform/hipeigen,ROCmSoftwarePlatform/hipeigen,TSC21/Eigen,pasuka/eigen,Zefz/eigen,Zefz/eigen,ritsu1228/eigen,pasuka/eigen,toastedcrumpets/eigen,ROCmSoftwarePlatform/hipeigen,TSC21/Eigen,ritsu1228/eigen,ritsu1228/eigen,ROCmSoftwarePlatform/hipeigen,ritsu1228/eigen,pasuka/eigen,Zefz/eigen,Zefz/eigen,TSC21/Eigen,toastedcrumpets/eigen,ritsu1228/eigen,TSC21/Eigen,pasuka/eigen,pasuka/eigen