docs: clearify the file upload in the embedding jupyter notebook

Author: tsenoner

examples/notebook/ClickThrough_GenerateEmbeddings.ipynb

@@ -63,8 +63,8 @@
     "#@markdown Choose embedding type:\n",
     "embedding_type = \"per_prot\" #@param [\"per_prot\", \"per_res\"]\n",
     "\n",
-    "# @markdown Select or upload your FASTA file:\n",
-    "fasta_filename = \"\" # @param {type:\"string\", placeholder:\"filepath to FASTA file\"}\n",
+    "# @markdown Enter a Google Drive path or upload from your computer:\n",
+    "fasta_filename = \"\" # @param {type:\"string\", placeholder:\"Path to FASTA file in Google Drive (leave empty to upload)\"}\n",
     "if not fasta_filename:\n",
     "    uploaded = files.upload()\n",
     "    fasta_filename = list(uploaded.keys())[0]\n",