Issue #2578995 by pguillard, jhodgdon, r_sharma08, ifrik, snehi, Manjit.Singh, himanshugautam, yoroy, xjm: Update the link descriptions on the Configuration page for the system module

Issue #2608692 by snehi, r_sharma08, anil280988, marvin_B8, rakesh.gectcr, ashhishhh, malavya, heykarthikwithu, kaushalkishorejaiswal, jhodgdon: Revise docblock for BookManager methods

Issue #2536682 by eporama, r_sharma08, snehi, rakesh.gectcr, chegor, Prashant.c: default.settings.php database instructions need to be user friendly

Issue #2633644 by rlhawk, mondrake, r_sharma08: Correct empty text does not display when there are no image styles

Issue #2575387 by chrisfree, r_sharma08, hussainweb, sudhanshug, Cottser, anil280988, AjitS, rashid_786, drupal.ninja03, Prashant.c, snehi, jordanpagewhite, anil.gangwal, brahmjeet789, jhodgdon, davidhernandez, Manjit.Singh: Add README.txt to Classy Base Theme?

Issue #2616784 by malcomio, shahinam, r_sharma08, kaushalkishorejaiswal, jhodgdon, cilefen, whatsupdan: Link to render API needs semicolon removed from URL

Issue #2568439 by anchal29, hussainweb, priya.chat, r_sharma08, drupal.ninja03, anil280988, snehi, tedbow, joyceg, amit.drupal, jhodgdon: profiles/README.txt incorrectly states that installation profiles do not 'have any effect on' already running sites

Issue #2564577 by snehi, borisson_, Wim Leers, r_sharma08, lauriii: Improve comments on PlaceholderGeneratorInterface::shouldAutomaticallyPlaceholder() and DynamicPageCacheSubscriber::shouldCacheResponse()

Issue #2612618 by anil280988, r_sharma08, Cottser, davidhernandez, kaushalkishorejaiswal: Add README.txt file to Stable explain its role as a backwards compatibility layer

(cherry picked from commit d1d0c6e6)

Issue #2607332 by r_sharma08, ashhishhh, snehi, pjonckiere, dawehner: Missing @return tag in getActiveHelp(), denormalize(), createBookNode()

(cherry picked from commit 0a97f790)

Issue #2607824 by Nitesh Pawar, r_sharma08: Asterisks in language-negotiation-configure-form.html.twig's docblock don't line up