Link missing docs from topic index

doc/topics/git/index.md

@@ -27,12 +27,18 @@ The following resources will help you get started with Git:
 - [Git on the Server - GitLab](https://git-scm.com/book/en/v2/Git-on-the-Server-GitLab)
 - [How to install Git](how_to_install_git/index.md)
 - [Start using Git on the command line](../../gitlab-basics/start-using-git.md)
-- [Command Line basic commands](../../gitlab-basics/command-line-commands.md)
+- [Command line file editing basic commands](../../gitlab-basics/command-line-commands.md)
 - [GitLab Git Cheat Sheet (download)](https://about.gitlab.com/images/press/git-cheat-sheet.pdf)
 - Commits:
   - [Revert a commit](../../user/project/merge_requests/revert_changes.md#reverting-a-commit)
   - [Cherry-picking a commit](../../user/project/merge_requests/cherry_pick_changes.md#cherry-picking-a-commit)
   - [Squashing commits](../gitlab_flow.md#squashing-commits-with-rebase)
+  - [Squash-and-merge](../../user/project/merge_requests/squash_and_merge.md)
+  - [Signing commits](../../user/project/repository/gpg_signed_commits/index.md)
+- [Git stash](../../university/training/topics/stash.md)
+- [Git file blame](../../user/project/repository/git_blame.md)
+- [Git file history](../../user/project/repository/git_history.md)
+- [Git tags](../../university/training/user_training.md#tags)
 
 ### Concepts
 
@@ -61,9 +67,10 @@ If you have problems with Git, the following may help:
 
 ## Branching strategies
 
+- [Feature branch workflow](../../gitlab-basics/feature_branch_workflow.md)
+- [GitLab Flow](../gitlab_flow.md)
 - [Git Branching - Branches in a Nutshell](https://git-scm.com/book/en/v2/Git-Branching-Branches-in-a-Nutshell)
 - [Git Branching - Branching Workflows](https://git-scm.com/book/en/v2/Git-Branching-Branching-Workflows)
-- [GitLab Flow](https://about.gitlab.com/blog/2014/09/29/gitlab-flow/)
 
 ## Advanced use
 
@@ -88,5 +95,5 @@ The following relate to Git Large File Storage:
 - [Removing objects from LFS](lfs/index.md#removing-objects-from-lfs)
 - [GitLab Git LFS user documentation](lfs/index.md)
 - [GitLab Git LFS admin documentation](../../administration/lfs/index.md)
-- [git-annex to Git-LFS migration guide](lfs/migrate_from_git_annex_to_git_lfs.md)
+- [Git Annex to Git LFS migration guide](lfs/migrate_from_git_annex_to_git_lfs.md)
 - [Towards a production quality open source Git LFS server](https://about.gitlab.com/blog/2015/08/13/towards-a-production-quality-open-source-git-lfs-server/)