Remove highly optimised comments

Author: jasonmcewen

notebooks/JAX_HEALPix_frontend.ipynb

@@ -25,7 +25,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "This short tutorial demonstrates how to use the custom JAX frontend support `S2FFT` provides for the highly optimised [`HEALPix`](https://healpix.jpl.nasa.gov) C++ library.  This solves the long JIT compile time for HEALPix when running on CPU.\n",
+    "This short tutorial demonstrates how to use the custom JAX frontend support `S2FFT` provides for the [`HEALPix`](https://healpix.jpl.nasa.gov) C++ library.  This solves the long JIT compile time for HEALPix when running on CPU.\n",
     "\n",
     "As with the other introductions, let's import some packages and define an arbitrary bandlimited signal to work with."
    ]

notebooks/JAX_SSHT_frontend.ipynb

@@ -25,7 +25,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "This short tutorial demonstrates how to use the custom JAX frontend support `S2FFT` provides for the highly optimised [`SSHT`](https://github.com/astro-informatics/ssht) C library.\n",
+    "This short tutorial demonstrates how to use the custom JAX frontend support `S2FFT` provides for the [`SSHT`](https://github.com/astro-informatics/ssht) C library.\n",
     "\n",
     "As with the other introductions, let's import some packages and define an arbitrary bandlimited signal to work with."
    ]