update documentation with fast_visualise and text

Author: Simul-Eqn

docs/source/intermediate/fills/eg_fill_hollow.py

@@ -26,4 +26,4 @@
 
 t.end_fill()
 
-t.visualise()
+t.fast_visualise() # fast_visualise because fills can take a long time 

docs/source/intermediate/fills/eg_fill_simplest.py

@@ -14,4 +14,4 @@
 # You must call the end_fill() function, or the shape will not be filled!
 t.end_fill()
 
-t.visualise(scale=2)
+t.fast_visualise(scale=2) # fast_visualise because fills can take a long time 

docs/source/intermediate/fills/eg_scanline_fill.py

@@ -27,4 +27,4 @@
 
 t.end_fill()
 
-t.visualise()
+t.fast_visualise() # fast_visualise because fills can take a long time 

docs/source/intermediate/text.rst

@@ -119,6 +119,9 @@ we set ``outline=True``.
 Outlining text is recommended for relatively small text sizes (less than 150), and preferred over fill as the fill can
 get messy with small text sizes. 
 
+We can also choose to use satin stitch for a cleaner outline of the text by setting the ``outline_satin_thickness`` 
+paramter, however this will make the code take much longer to run. 
+
 We can also choose whether or not to fill text. We can either choose no fill, partial fill, or full fill. The below
 code illustrates the three possibilities.
 
@@ -152,7 +155,7 @@ Here is an example of the text functionality in TurtleThread.
 
 .. literalinclude:: text/eg_text_walkthrough.py
     :language: python
-    :lines: 1-15
+    :lines: 1-25
     :linenos:
 
 .. image:: ../../_static/figures/text/example.png 
@@ -168,3 +171,5 @@ Unpacking the above code:
   - **Line 10:** ``ld.draw_letter_gap(fontsize)`` is used to draw the gap between two letters, and should be used with ``draw_one_letter``.
 
   - **Line 11:** ``ld.draw_string`` is similar to ``ld.draw_one_letter`` except it draws an entire string instead. Also, instead of parameters named ``fill`` and ``outline``, it has the parameters ``fills`` and ``outlines``, which can be a single boolean value or a list of boolean values. 
+
+  - **Line 25:** ``te.fast_visualise()`` function will visualise the drawing faster, as text fill may take a long time. 

docs/source/intermediate/text/eg_text_walkthrough.py

@@ -22,4 +22,4 @@
     ld.draw_string("Arial", "PLE", 120, fills=True, outlines=True, full_fill=False) # Prtial fill - best used with outline 
 
 # From here on, this unindented code cannot use LetterDrawer. 
-turtle.visualise()
+turtle.fast_visualise() # use fast visualization as fills can take a long time 

docs/source/intermediate/whatsnew.rst

@@ -57,7 +57,7 @@ Exporting for Embroidery
 The key purpose of TurtleThread is to allow for designs to be embroidered into reality. As such, knowing how to prepare 
 files for embroidery is essential.
 
-Firstly, ensure that you call the ``turtle.visualise()`` function. From the bottom of the interface, the estimated time
+Firstly, ensure that you call the ``turtle.visualise()`` or ``turtle.fast_visualise()`` function. From the bottom of the interface, the estimated time
 for how long the pattern will take to embroider is displayed, as well as the number of stitches if you wish to 
 calculate the time needed for your embroidery machine.