docs:Minor change.

Author: antononcube

docs/Basic-usage.ipynb

@@ -143,17 +143,17 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 26,
+   "execution_count": 42,
    "id": "2904bf39",
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "$a^2+b^2+2ab$"
+       "a^2+b^2+2ab"
       ]
      },
-     "execution_count": 26,
+     "execution_count": 42,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -162,7 +162,7 @@
     "'(a + b)^2'==> \n",
     "parse-latex()==> \n",
     "expand()==>\n",
-    "to-latex"
+    "to-latex(:!bracketed)"
    ]
   },
   {