Add localtileserver to related projects (#976)

* Add localtileserver to related projects

* Fix link

Author: banesullivan

docs/source/related_projects/index.rst

@@ -1,9 +1,10 @@
 Related projects
 ================
 
-Here is a list of existing open source projects that build functionality upon ipyleaflet.
+Here is a list of existing open source projects that build functionality upon ipyleaflet or work well with ipyleaflet:
 
 - `geemap <https://geemap.org>`_: a Python package for interactive mapping with Google Earth Engine, ipyleaflet, and ipywidgets.
 - `leafmap <https://leafmap.org>`_: a Python package for geospatial analysis and interactive mapping in a Jupyter environment.
 - `xarray-leaflet <https://github.com/davidbrochart/xarray_leaflet>`_: an xarray extension for tiled map plotting, based on ipyleaflet.
 - `ipygee <https://github.com/fitoprincipe/ipygee>`_: another Python package for interactive mapping with Google Earth Engine, ipyleaflet, and ipywidgets.
+- `localtileserver <https://github.com/banesullivan/localtileserver>`_: a dynamic tile server built for visualizing large geospatial images/rasters with ipyleaflet.