Update README.md (#1243)

README.md

@@ -41,7 +41,7 @@ steps:
     fail_ci_if_error: true # optional (default = false)
     verbose: true # optional (default = false)
   env:
-    token: ${{ secrets.CODECOV_TOKEN }}
+    CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 ```
 >**Note**: This assumes that you've set your Codecov token inside *Settings > Secrets* as `CODECOV_TOKEN`. If not, you can [get an upload token](https://docs.codecov.io/docs/frequently-asked-questions#section-where-is-the-repository-upload-token-found-) for your specific repo on [codecov.io](https://www.codecov.io). Keep in mind that secrets are *not* available to forks of repositories.
 
@@ -127,7 +127,7 @@ jobs:
         name: codecov-umbrella
         verbose: true
       env:
-        token: ${{ secrets.CODECOV_TOKEN }}
+        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 ```
 ## Contributing