add yarn-error.log to .gitignore (#239)

Chris Brody · web-flow · commit f57bcb55814f · 2020-02-12T08:57:22.000-05:00
diff --git a/.gitignore b/.gitignore
@@ -27,6 +27,7 @@ Temporary Items
 
 node_modules
 npm-debug.log
+yarn-error.log
 
 # Stryker mutator output
 .stryker-tmp
