Update "Core Concepts" docs (cosmos#7948)

* Update "Core Concepts" docs

* Update tags

* Update more subsctions

* Revert basics

* ADd link to run-node

* Typo

* Add sign modes

* Finish transaction.md

* Update docs/core/baseapp.md

Co-authored-by: Marie Gauthier <[email protected]>

* Update docs/core/baseapp.md

Co-authored-by: Marie Gauthier <[email protected]>

* Update docs/core/baseapp.md

Co-authored-by: Marie Gauthier <[email protected]>

* Update docs/core/baseapp.md

Co-authored-by: Marie Gauthier <[email protected]>

* Update docs/core/baseapp.md

Co-authored-by: Marie Gauthier <[email protected]>

* Update docs/core/baseapp.md

Co-authored-by: Marie Gauthier <[email protected]>

* Wording

* Update docs/core/baseapp.md

Co-authored-by: Marie Gauthier <[email protected]>

* Revert basics changes

* revert space change

* typo

* Update docs/core/transactions.md

Co-authored-by: Marie Gauthier <[email protected]>

* Update docs/core/node.md

Co-authored-by: Robert Zaremba <[email protected]>

* Update docs/core/store.md

Co-authored-by: Robert Zaremba <[email protected]>

Co-authored-by: Marie Gauthier <[email protected]>
Co-authored-by: Robert Zaremba <[email protected]>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

simd/cmd/root.go

@@ -167,6 +167,7 @@ func txCommand() *cobra.Command {
 	return cmd
 }
 
+// newApp is an AppCreator
 func newApp(logger log.Logger, db dbm.DB, traceStore io.Writer, appOpts servertypes.AppOptions) servertypes.Application {
 	var cache sdk.MultiStorePersistentCache