chore: retire the stale future branch

.github/pull_request_template.md

@@ -2,7 +2,7 @@ We thank you in advance for your pull request, and for your interest and support
 
 You could help us a lot by:
 
-* Making your pull request relative to the `future` branch.  This is where we fix issues and merge pull requests prior to pushing out a new release.
+* Making your pull request relative to the `main` branch.
 * Including a reference/link to any related issues.
 * Providing a clear description of the problem you are addressing with the pull request, the changes proposed, and their rationale.
   * We appreciate code comments explaining what your added block of code does.

.github/workflows/ci.yml

@@ -1,5 +1,5 @@
 # Run tests, coverage, and build docs across all supported platforms
-# Triggers on pushes/PRs to main and the active dev branch.
+# Triggers on pushes/PRs to main.
 #
 # spatialgeometry and swift-sim are installed from GitHub HEAD because the
 # current PyPI releases were compiled against NumPy 1.x and crash under 2.x.
@@ -10,9 +10,9 @@ name: CI
 
 on:
   push:
-    branches: [main, future]
+    branches: [main]
   pull_request:
-    branches: [main, future]
+    branches: [main]
 
 env:
   FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true

README.md

@@ -446,7 +446,7 @@ K. He, R. Newbury, T. Tran, J. Haviland, B. Burgess-Limerick, D. Kulić, P. Cork
 
 <p>
   <a href="https://youtu.be/vobLvg4E3kM">
-    <img src="https://raw.githubusercontent.com/petercorke/robotics-toolbox-python/future/docs/figs/vmc_youtube.png" width="560">
+    <img src="https://raw.githubusercontent.com/petercorke/robotics-toolbox-python/main/docs/figs/vmc_youtube.png" width="560">
   </a>
 </p>