fix scripts

Cargo.toml

@@ -8,6 +8,5 @@ members = [
   "loops",
   "ownership",
   "references_and_borrowing",
-  "slice_type",
   "variables",
 ]

create_project.sh

@@ -12,25 +12,5 @@ fi
 # Step 1: Create new cargo project without Git
 cargo new "$name" --vcs none
 
-# Step 2: Insert project into workspace Cargo.toml
-if grep -q "^\[workspace\]" Cargo.toml; then
-  if grep -q "\"$name\"" Cargo.toml; then
-    echo "⚠️ Project '$name' already exists in workspace members. Skipping insertion."
-  else
-    echo "📦 Adding '$name' to workspace members..."
-
-    # Find the line number of the closing bracket ]
-    end_line=$(awk '/members\s*=\s*\[/,/\]/{if ($0 ~ /\]/) print NR}' Cargo.toml)
-
-    # Insert before the closing bracket
-    awk -v name="$name" -v end="$end_line" '
-    NR == end { print "  \"" name "\"," }
-    { print }
-    ' Cargo.toml > Cargo.toml.tmp && mv Cargo.toml.tmp Cargo.toml
-  fi
-else
-  echo "❌ No [workspace] section found in Cargo.toml."
-  exit 1
-fi
-
 echo "✅ Project '$name' created and added to workspace!"
+echo "add $name to Cargo.toml"