Merge pull request #56 from square/support-for-1.7.6

- Update readerSdkVersion to 1.7.6

Update for 1.7.5 (#54)

Merge pull request #47 from square/release_1.7.4

Release 1.7.4

Upgrade to Reader SDK 1.7.1, and upgrade to Android API 31. (#45)

Merge pull request #44 from square/bcheng/update-reader-sdk

Update Reader SDK dependency to 1.6.2

Update Readerk SDK dependency to 1.6.1 and Gradle to 7.4.2 (#43)

Upgrading RSDK to 1.5.6; also updating from ancient Grade and AGP to 7.0.2 (#42)

Illustrate doNotStrip, since Gradle is getting more aggressive about wanting to. (#41)

Version bump to RSDK 1.5.5

Headline change, updating from RSDK 1.5.1 to 1.5.4. (#39)

Merge pull request #37 from square/daphne/add-feedback-link

Update README.md