updates for --help

pull-all

@@ -1,6 +1,22 @@
 #!/bin/bash
 set -euo pipefail
 
+for arg in "$@"; do
+  case "$arg" in
+    --help|-h)
+      cat <<'EOF'
+Usage: pull-all [options]
+
+Pull latest changes for all repos matching *schmeeve* in ~/git/.
+
+Options:
+  -h, --help    Show this help message and exit
+EOF
+      exit 0
+      ;;
+  esac
+done
+
 GIT_HOME="${HOME}/git"
 
 for dir in "${GIT_HOME}"/*/ "${HOME}/Dotfiles"; do