Update 02-building-graphs-with-pggb.ipynb

Removed the text stating that we had changed the sequence names since the students are now doing it. Moved the link to the naming specification.

module_notebooks/02-building-graphs-with-pggb.ipynb

@@ -137,20 +137,7 @@
     "\n"
    ]
   },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### We Changed the Names\n",
-    "\n",
-    "+ YPRP FASTA files only contain chromosome names\n",
-    "+ We prefixed every chromosome with its assembly name and a \".\" delineator\n",
-    "  + e.g. S288C.chrVIII\n",
-    "+ [Pangenome Sequence Naming Specification](https://github.com/pangenome/PanSN-spec)",
-    "\n"
-   ]
-  },
-  {
+{
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -178,6 +165,7 @@
    "metadata": {},
    "source": [
     "2. Change the fasta headers to include the yeast accession name\n",
+    "[Pangenome Sequence Naming Specification](https://github.com/pangenome/PanSN-spec)\n\n",
     " + The for loop will work through each of the genome fasta files.\n",
     " + It will strip off the file suffix to get the yeast accession name.\n",
     " + It will then use sed to substitute the accession name in after the \">\" of the header line.\n",