Update all pages to include language for code blocks

Also add a standard editorconfig, and hide the book directory from VS Code.

.editorconfig

@@ -0,0 +1,8 @@
+# EditorConfig is awesome: https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+charset = utf-8
+insert_final_newline = true

.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+	"files.exclude": {
+		"book/**": true
+	}
+}

src/branching.md

@@ -1,5 +1,5 @@
 # Branching
-```
+```bash
 # Create a new branch.
 git branch <branchName>
 

src/collaboration.md

@@ -1,5 +1,5 @@
 # Collaboration
-```
+```bash
 # Pull from default remote.
 git pull
 

src/commits.md

@@ -1,5 +1,5 @@
 # Commits
-```
+```bash
 # Use a basic GUI. Actually works quite well for staging hunks that can't be split.
 git gui
 

src/commits/fixing.md

@@ -1,5 +1,5 @@
 # Fixing commits
-```
+```bash
 # Revert the last commit.
 git revert HEAD
 

src/configuration/git.md

@@ -1,5 +1,5 @@
 # Git configuration
-```
+```bash
 # See where configuration options are set.
 git config --list --show-origin
 

src/configuration/repository.md

@@ -1,5 +1,5 @@
 # Repository information
-```
+```bash
 # List config details, including remotes, for the current repo.
 git config --local -l
 

src/configuration/user.md

@@ -1,5 +1,5 @@
 # User information
-```
+```bash
 # Pull user information.
 git config user.name
 git config user.email

src/example/create-new-repo-from-subdirectory.md

@@ -1,7 +1,7 @@
 # Example: Create a new repo from a subdirectory
 Useful if you want to pull a directory, and its commit history, out into a new repo.
 
-```
+```bash
 # Clone the repository into a new directory.
 git clone _.git
 

src/example/update-fork.md

@@ -1,6 +1,6 @@
 # Example: Updating a fork
 
-```
+```bash
 # On the fork:
 git checkout master
 

src/logging.md

@@ -1,5 +1,5 @@
 # Logging
-```
+```bash
 # View the last few commits.
 git log
 git log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset'

src/stashing.md

@@ -1,5 +1,5 @@
 # Stashing changes
-```
+```bash
 # If you can't pull/merge due to a file conflict, stashes changes, does a pull, and then puts the changes back, dropping the stash.
 # git stash pop = git stash apply && git stash drop
 git stash

src/tags.md

@@ -1,5 +1,5 @@
 # Tags
-```
+```bash
 # List all tags.
 git tag