minor README

Author: vijaydwivedi75

README.md

@@ -7,7 +7,7 @@
 ## Updates
 
 **May 10, 2022**
-* Project based on DGL 0.6.2 and higher. See the relevant dependencies defined in the environment yml files ([CPU](./environment_cpu.yml), [GPU](./environment_gpu.yml)).  
+* Project based on DGL 0.6.1 and higher. See the relevant dependencies defined in the environment yml files ([CPU](./environment_cpu.yml), [GPU](./environment_gpu.yml)).  
 * Updated technical report of the framework on [ArXiv](https://arxiv.org/pdf/2003.00982.pdf).
 * Added [AQSOL dataset](https://www.nature.com/articles/s41597-019-0151-1), which is similar to ZINC for graph regression task, but has a real-world measured chemical target. 
 * Added mathematical datasets -- GraphTheoryProp and CYCLES which are useful to test GNNs on specific theoretical graph properties.