Added hard dependency documentation to README.

Author: hcpchris

CHANGES.rst

@@ -1,3 +1,12 @@
+Release 1.0.1
+=========================================
+
+* Added documentation of "hard" dependencies to the README.
+* Fixed broken links in documentation to ``options.plot_options.heatmap.HeatmapOptions`` 
+  and ``options.plot_options.heatmap.TilemapOptions``.
+
+------------------
+
 Release 1.0.0
 =========================================
 

README.rst

@@ -77,6 +77,20 @@ To install **Highcharts Gantt for Python**, just execute:
 
     $ pip install highcharts-gantt
 
+Before you install, please be aware of the following "hard" dependencies:
+
+  * Python 3.10 or higher
+  * Highcharts Gantt (JS) v.10.3 or higher (not technically a Python dependency, but 
+    it won't work with earlier versions of Highcharts Stock)
+  * `Highcharts Stock for Python <https://stock-docs.highchartspython.com/en/latest/>`__ v.1.0 or higher
+  * `esprima-python <https://github.com/Kronuz/esprima-python>`__ v.4.0 or higher
+  * `requests <https://requests.readthedocs.io/en/latest/>`__ v.2.28 or higher
+  * `validator-collection <https://validator-collection.readthedocs.io/en/latest/>`__
+    v.1.5 or higher
+
+You can find more information about soft and development dependencies in the
+`complete documentation <https://gantt-docs.highchartspython.com/en/latest/#dependencies>`__.
+
 -------------
 
 *********************************

highcharts_gantt/__version__.py

@@ -1 +1 @@
-__version__ = '1.0.0'
+__version__ = '1.0.1'