Use checkout@v2 in README example (#258)

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Matija Čupić 2020-04-16 17:50:47 +02:00 committed by GitHub
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@ -37,7 +37,7 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v1
- uses: actions/checkout@v2
- name: Cache Primes
id: cache-primes