replace inaccurate name.

README.md

@@ -310,7 +310,7 @@ sourced from the POPSICLE Yeast Segmentation Dataset deposition
 | `nucleus`            | `nucleus`                   |
 | `nuclear-envelope`   | `nuclear envelope`          |
 | `vesicle`            | `vesicle`                   |
-| `endomembrane`       | `membrane-enclosed lumen`   |
+| `membrane-tubule`       | `membrane-enclosed lumen`   |
 | `mitochondrion`      | `mitochondrion`             |
 
 #### Splits
@@ -322,13 +322,13 @@ sourced from the POPSICLE Yeast Segmentation Dataset deposition
 
 Class distribution is uneven — large structures like `cytoplasm` are
 present in nearly every run, while small organelles (`vesicle`,
-`endomembrane`) are sparse and `mitochondrion` / `nucleus` are present
+`membrane-tubule`) are sparse and `mitochondrion` / `nucleus` are present
 in only a subset:
 
 | Class               | Total runs |
 |---------------------|-----------:|
 | `cytoplasm`         | 19         |
-| `endomembrane`      | 18         |
+| `membrane-tubule`      | 18         |
 | `vesicle`           | 18         |
 | `mitochondrion`     |  9         |
 | `nuclear-envelope`  |  8         |

demos.ipynb

@@ -193,14 +193,7 @@
   {
    "cell_type": "markdown",
    "metadata": {},
-   "source": [
-    "## Yeast — multi-class organelle segmentation\n",
-    "\n",
-    "Six organelle classes (cytoplasm, nucleus, nuclear-envelope,\n",
-    "vesicle, endomembrane, mitochondrion) on 20 *S. pombe* tomograms\n",
-    "split 16/4 train/test. Low-data, class-imbalanced eukaryotic\n",
-    "counterpart to the bacterial benchmark.\n"
-   ],
+   "source": "## Yeast — multi-class organelle segmentation\n\nSix organelle classes (cytoplasm, nucleus, nuclear-envelope,\nvesicle, membrane-tubule, mitochondrion) on 20 *S. pombe* tomograms\nsplit 16/4 train/test. Low-data, class-imbalanced eukaryotic\ncounterpart to the bacterial benchmark.",
    "id": "aaf332964b36fdb3"
   },
   {