Updated top title

Author: andreas-zeller

notebooks/index.ipynb

@@ -4,7 +4,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# About this Book\n",
+    "# The Debugging Book\n",
     "\n",
     "__Welcome to \"The Debugging Book\"!__ \n",
     "Software has bugs, and finding bugs can involve lots of effort.  This book addresses this problem by _automating_ software debugging, specifically by _locating errors and their causes automatically_.  Recent years have seen the development of novel techniques that lead to dramatic improvements in automated software debugging.  They now are mature enough to be assembled in a book – even with executable code. \n",