spark git commit: [GRAPHX][EXAMPLES] move graphx test data directory and update graphx document

Repository: spark Updated Branches: refs/heads/branch-2.0 ab4303800 -> f3a359939 [GRAPHX][EXAMPLES] move graphx test data directory and update graphx document ## What changes were proposed in this pull request? There are two test data files used for graphx examples existing in directory "gra

spark git commit: [GRAPHX][EXAMPLES] move graphx test data directory and update graphx document

Repository: spark Updated Branches: refs/heads/master bad0f7dbb -> 192d1f9cf [GRAPHX][EXAMPLES] move graphx test data directory and update graphx document ## What changes were proposed in this pull request? There are two test data files used for graphx examples existing in directory "graphx/