jj-{absorb, evolog, restore}: add pages (#17129)

* jj-evolog: add page

* jj-absorb: add page

* jj-restore: add page

* Fix typo in jj-restore

---------

Co-authored-by: Wiktor Perskawiec <git@spageektti.cc>

pages/common/jj-absorb.md

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+# jj absorb
+
+> Split changes in the source revision and move each change to the closest mutable ancestor where the corresponding lines were modified last.
+> More information: <https://jj-vcs.github.io/jj/latest/cli-reference/#jj-absorb>.
+
+- Move all changes from a revision to other revisions automatically:
+
+`jj absorb {{[-f|--from]}} {{revset}} {{[-t|--into]}} {{revsets}}`
+
+- Move only changes in given files from a revision to other revisions:
+
+`jj absorb {{[-f|--from]}} {{revset}} {{[-t|--into]}} {{revsets}} {{filesets}}`

pages/common/jj-evolog.md

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+# jj evolog
+
+> Show how a change has evolved over time, listing the previous commits it has pointed to.
+> More information: <https://jj-vcs.github.io/jj/latest/cli-reference/#jj-evolog>.
+
+- Show how a revision has evolved over time:
+
+`jj evolog {{[-r|--revision]}} {{revset}}`
+
+- Show diff statistics in the evolution log:
+
+`jj evolog {{[-r|--revision]}} {{revset}} --stat`
+
+- Show summary of each change in the evolution log:
+
+`jj evolog {{[-r|--revision]}} {{revset}} {{[-s|--summary]}}`

pages/common/jj-restore.md

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+# jj restore
+
+> Restore files from another revision.
+> More information: <https://jj-vcs.github.io/jj/latest/cli-reference/#jj-restore>.
+
+- Restore files from a revision into another revision:
+
+`jj restore {{[-f|--from]}} {{revset}} {{[-t|--into]}} {{revset}} {{filesets}}`
+
+- Undo the changes in a revision as compared to the merge of its parents:
+
+`jj restore {{[-c|--changes-in]}} {{revset}} {{filesets}}`
+
+- Interactively choose what parts to restore:
+
+`jj restore {{[-f|--from]}} {{revset}} {{[-t|--into]}} {{revset}} {{[-i|--interactive]}}`