Add update.sh and update readme accordingly

5 jobs for master in 6 minutes and 20 seconds (queued for 1 minute and 4 seconds)
Status Job ID Name Coverage
  Build Testinstall
passed #307381
dailyBuildMasterAll

00:01:11

 
  Doc Coverage
passed #307383
Doc

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passed #307382
TestCoverage

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92.0%
 
  Deploy
passed #307384
pages

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failed pages:deploy

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