resources: spellcheck square README

Change-Id: I59d3d7d631949104cc985fff301e0f2f0b4671e8
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-resources/+/47503
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: Jason Lowe-Power <power.jg@gmail.com>
diff --git a/src/gpu/square/README.md b/src/gpu/square/README.md
index 53db8c0..3a764c1 100644
--- a/src/gpu/square/README.md
+++ b/src/gpu/square/README.md
@@ -11,7 +11,7 @@
 
 The square test is used to test the GCN3-GPU model.
 
-Compiling square, compiling the GCN3_X86 gem5, and runing square on gem5is dependent on the gcn-gpu docker image, built from the `util/dockerfiles/gcn-gpu/Dockerfile` on the [gem5 stable branch](https://gem5.googlesource.com/public/gem5/+/refs/heads/stable).
+Compiling square, compiling the GCN3_X86 gem5, and running square on gem5 is dependent on the gcn-gpu docker image, built from the `util/dockerfiles/gcn-gpu/Dockerfile` on the [gem5 stable branch](https://gem5.googlesource.com/public/gem5/+/refs/heads/stable).
 
 ## Compiling Square