Update README.md

Author: jurajHasik

README.md

@@ -11,7 +11,7 @@ by the corner-transfer matrix (CTM) algorithm. Afterwards, the gradients are com
 automatic differentiation (AD).
 
 #### Now supporting 
-* **abelian symmetries, with implementation power by [YAST](https://gitlab.com/marekrams/yast)**
+* **abelian symmetries, with implementation powered by [YAST](https://gitlab.com/marekrams/yast)**
 
   Allows definition of abelian-symmetric iPEPS in terms of block-sparse tensors, computing their 
   symmetric environments, and their optimization with gradient-based methods.
@@ -169,4 +169,4 @@ References:
 4.	*Systematic construction of spin liquids on the square lattice from tensor networks with SU(2) symmetry*, 
 	M. Mambrini, R. Orus, and D. Poilblanc, [Phys. Rev. B 94, 205124 (2016)](https://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.205124) or arXiv version [arXiv:1608.06003](https://arxiv.org/abs/1608.06003)
 5.	*Investigation of the Néel phase of the frustrated Heisenberg antiferromagnet by differentiable symmetric tensor networks*,
-	J. Hasik, D. Poilblanc, and F. Becca, [SciPost Phys. 10, 012 (2021)](https://scipost.org/submissions/scipost_202011_00009v2/)
+	J. Hasik, D. Poilblanc, and F. Becca, [SciPost Phys. 10, 012 (2021)](https://scipost.org/submissions/scipost_202011_00009v2/)