Fix some typos, add codespell workflow to ensure no more typos sneak in

.codespellrc

@@ -0,0 +1,3 @@
+[codespell]
+skip = .git,js
+# ignore-words-list = 

.github/workflows/codespell.yml

@@ -0,0 +1,19 @@
+---
+name: Codespell
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  codespell:
+    name: Check for spelling errors
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Codespell
+        uses: codespell-project/actions-codespell@v1

docs/dev_notes/testing.rst

@@ -88,7 +88,7 @@ A browser window will be opened with a visualization looking like this.
 
     Posting test
 
-It will close automatically. The test checks wether the returned configuration is equal to the posted configuration.
+It will close automatically. The test checks whether the returned configuration is equal to the posted configuration.
 
 Reproducibility
 ~~~~~~~~~~~~~~~

docs/visualization/init.rst

@@ -22,7 +22,7 @@ Other physics parameters are:
 
 * *Link distance variation*. Shortens the optimal distance of strong links. This is mostly useful in sparse networks as the link strengths in dense networks are small. Works well when link distance is large.
 * *Collision*: Implemented with `d3.forceCollide <https://github.com/d3/d3-force#forceCollide>`_ with default strength (0.7) and makes overlapping nodes more unlikely.
-* *Wiggle*: Sets the simulation *alphaTarget* to 1, causing nodes to move more freely. Useful for "wiggling" nodes out of place if the layout seems stuck in a local minumum.
+* *Wiggle*: Sets the simulation *alphaTarget* to 1, causing nodes to move more freely. Useful for "wiggling" nodes out of place if the layout seems stuck in a local minimum.
 * *Freeze*: Stops the force simulation. The simulation is restarted when this is untoggled. When the network nodes have initial positions (given as node-attributes "x" and "y"), "Freeze" is enabled at launch, so that the initial positions are respected.
 
 

netwulf/tests/test_all.py

@@ -45,7 +45,7 @@ class Test(unittest.TestCase):
     maxDiff = None
 
     def test_posting(self):
-        """Test whether results are sucessfully posted to Python."""
+        """Test whether results are successfully posted to Python."""
         G = _get_test_network()
         visualize(G,is_test=True,config=_get_test_config())
 
@@ -58,15 +58,15 @@ def test_reproducibility(self):
         newprops, newconfig = visualize(G, config=config,is_test=True)
 
         # test if node positions are close within 1% and subsequently 
-        # round all positional values to the 2nd positon (e.g. 451 => 450)
+        # round all positional values to the 2nd position (e.g. 451 => 450)
         _assert_positions_within_one_percent(props,newprops)
         _drastically_round_positions(props)
         _drastically_round_positions(newprops)
 
         # the second visualization should have frozen the nodes
         assert(newconfig['freeze_nodes'])
 
-        # change it so the dictionary-equal-assertion doesnt fail
+        # change it so the dictionary-equal-assertion doesn't fail
         newconfig['freeze_nodes'] = False
 
         self.assertDictEqual(props, newprops)

netwulf/tools.py

@@ -220,7 +220,7 @@ def bind_properties_to_network(network,
         >>> props, _ = netwulf.visualize(G)
         >>> netwulf.bind_properties_to_network(G, props)
     """
-    # Add individial node attributes
+    # Add individual node attributes
     if bind_node_positions:
         x = { node['id']: node['x'] for node in network_properties['nodes'] }
         y = { node['id']: node['y'] for node in network_properties['nodes'] }