Scipy2025 followup (#341)

* remove banner

* fix typos

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: scottyhq

_config.yml

@@ -10,7 +10,7 @@ exclude_patterns: [.github, .pixi]
 html:
   # NOTE: this announcement shows up on all pages
   #announcement: '<a href="https://forms.gle/KEq7WviCdz9xTaJX6">The Xarray 2024 User Survey is live. Please take ~5 minutes to fill it out and help us improve Xarray.</a>'
-  announcement: 'ℹ️ SciPy 2025 Tutorial Attendees. <a href="https://tutorial.xarray.dev/workshops/scipy2025/index.html">Click here! </a>.'
+  #announcement: 'ℹ️ SciPy 2025 Tutorial Attendees. <a href="https://tutorial.xarray.dev/workshops/scipy2025/index.html">Click here! </a>.'
   home_page_in_navbar: false
   use_edit_page_button: true
   use_issues_button: true

intermediate/storage_formats.ipynb

@@ -34,7 +34,7 @@
     "\n",
     "Many storage formats for scientific data include some notion of \"groups\". \n",
     "\n",
-    "The exact meaning of \"group\" differs between formats but  are all ultimately motivated by a common recognition: that real scientific datasets often include related but otherwise heterogenous data."
+    "The exact meaning of \"group\" differs between formats but  are all ultimately motivated by a common recognition: that real scientific datasets often include related but otherwise heterogeneous data."
    ]
   },
   {
@@ -48,7 +48,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "We'll start with Zarr, because it has the most simple type of heirarchical structure."
+    "We'll start with Zarr, because it has the most simple type of hierarchical structure."
    ]
   },
   {