docs: better badges (#2656)

Author: henryiii

.github/dependabot.yml

@@ -6,6 +6,11 @@ updates:
     schedule:
       interval: "daily"
     ignore:
-      # Offical actions have moving tags like v1
+      # Official actions have moving tags like v1
       # that are used, so they don't need updates here
-      - dependency-name: "actions/*"
+      - dependency-name: "actions/checkout"
+      - dependency-name: "actions/setup-python"
+      - dependency-name: "actions/cache"
+      - dependency-name: "actions/upload-artifact"
+      - dependency-name: "actions/download-artifact"
+      - dependency-name: "actions/labeler"

.github/workflows/configure.yml

@@ -55,7 +55,7 @@ jobs:
     # An action for adding a specific version of CMake:
     #   https://github.com/jwlawson/actions-setup-cmake
     - name: Setup CMake ${{ matrix.cmake }}
-      uses: jwlawson/actions-setup-cmake@v1.3
+      uses: jwlawson/actions-setup-cmake@v1.4
       with:
         cmake-version: ${{ matrix.cmake }}
 

README.rst

@@ -5,6 +5,12 @@
 
 |Latest Documentation Status| |Stable Documentation Status| |Gitter chat| |CI| |Build status|
 
+|Repology| |PyPI package| |Conda-forge| |Python Versions|
+
+`Setuptools example <https://github.com/pybind/python_example>`_
+• `Scikit-build example <https://github.com/pybind/scikit_build_example>`_
+• `CMake example <https://github.com/pybind/cmake_example>`_
+
 .. warning::
 
    Combining older versions of pybind11 (< 2.6.0) with the brand-new Python
@@ -173,3 +179,11 @@ to the terms and conditions of this license.
    :target: https://github.com/pybind/pybind11/actions
 .. |Build status| image:: https://ci.appveyor.com/api/projects/status/riaj54pn4h08xy40?svg=true
    :target: https://ci.appveyor.com/project/wjakob/pybind11
+.. |PyPI package| image:: https://img.shields.io/pypi/v/pybind11
+   :target: https://pypi.org/project/pybind11/
+.. |Conda-forge| image:: https://img.shields.io/conda/vn/conda-forge/pybind11
+   :target: https://github.com/conda-forge/pybind11-feedstock
+.. |Repology| image:: https://repology.org/badge/latest-versions/python:pybind11.svg
+   :target: https://repology.org/project/python:pybind11/versions
+.. |Python Versions| image:: https://img.shields.io/pypi/pyversions/pybind11
+   :target: https://pypi.org/project/pybind11/