Add chapter first-draft summaries

Author: jordanmccullough

advanced/index.md

@@ -10,6 +10,8 @@ redirect_from:
 
 ## Understanding Git, navigating history
 
+Explore the structure and way change is preserved in Git.
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 ## Collaborating on change & releases
 
+Cutting and creating releases on the command line and on GitHub.
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 {% capture lab %}
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 ## Ignoring & cleaning up files
 
+Prevent unwanted project artifacts from becoming tracked content.
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 {% capture lab %}
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 ## Mastering shortcuts & efficiencies
 
+Circumvent multi-step processes and utilize temporary solutions for quick history interaction.
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 {% capture lab %}
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 ## Capturing pieces of history
 
+Craft and acquire commits with selective, as-needed commands.
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 {% capture lab %}
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 ## Rewriting and crafting history
 
+Rebase and reorder existing commits for improved historical context.
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 ## Reviewing & synchronizing
 
+Interact, investigate, and integrat remote repository histories.
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 {% capture lab %}
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 ## Filtering histories & externalizing dependencies
 
+Separate single, large repository histories into individual projects.
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 {% capture lab %}
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 ## Signing work
 
+Identify work legitimacy with easy-to-use GPG and commit functionality.
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 {% capture lab %}
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 ## Using GitHub CLI and the API
 
+Interact with GitHub features directly from the command line.
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 {% capture lab %}
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 ## Diff & merge tool
 
+Go beyond command line comparison with visual tooling.
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 {% capture lab %}