Add codespell CI + fix one new typo

.codespellrc

@@ -0,0 +1,6 @@
+[codespell]
+# Ref: https://github.com/codespell-project/codespell#using-a-config-file
+skip = .git,.codespellrc
+check-hidden = true
+# ignore-regex = 
+# ignore-words-list =

.github/workflows/codespell.yml

@@ -0,0 +1,23 @@
+# Codespell configuration is within .codespellrc
+---
+name: Codespell
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+permissions:
+  contents: read
+
+jobs:
+  codespell:
+    name: Check for spelling errors
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Codespell
+        uses: codespell-project/actions-codespell@v2

README.md

@@ -99,7 +99,7 @@ While I may indeed someday make an entire written document for each individual f
 
 ## Quick tips, fixes and other notes.
 
-* Note that the first time the circleCI run of this softwrae attempts to populate the results into a json, it will likely say there is an error populating it in the terminal output, giving something along the lines of:
+* Note that the first time the circleCI run of this software attempts to populate the results into a json, it will likely say there is an error populating it in the terminal output, giving something along the lines of:
 *Streaming text for fileID: 3700641
 Synchronized userfiles 3700641
 Download failure