Normalize pypi_ids to use dashes (#152)

The official package index does it

check_projects.py

@@ -130,6 +130,9 @@ def check_install_project(project, install_name, errors=None):
     if any(key in project for key in _kind_to_label):
         if "pypi_id" in project:
             install_name = project["pypi_id"]
+            if "_" in install_name:
+                install_name = install_name.replace("_", "-")
+                errors.append(f"'pypi_id' should be '{install_name}' not '{project['pypi_id']}'")
         elif "github_id" in project:
             install_name = f"git+https://github.com/{project['github_id']}"
         else:

projects.yaml

@@ -562,7 +562,7 @@ projects:
   mkdocs_plugin: mkdocs_protobuf
   description: Mkdocs plugin to render protobuf messages
   github_id: rymurr/mkdocs-protobuf
-  pypi_id: mkdocs_protobuf
+  pypi_id: mkdocs-protobuf
   labels: [plugin]
   license: Apache-2
   category: code-exec-templating
@@ -851,7 +851,7 @@ projects:
 - name: Wikilink Plus
   markdown_extension: mdx_wikilink_plus
   github_id: neurobin/mdx_wikilink_plus
-  pypi_id: mdx_wikilink_plus
+  pypi_id: mdx-wikilink-plus
   labels: [markdown]
   category: links-refs
 - name: unused-files
@@ -906,7 +906,7 @@ projects:
 - name: Mdx Truly Sane Lists
   markdown_extension: mdx_truly_sane_lists
   github_id: radude/mdx_truly_sane_lists
-  pypi_id: mdx_truly_sane_lists
+  pypi_id: mdx-truly-sane-lists
   labels: [markdown]
   category: markdown
 - name: Breakless Lists
@@ -948,7 +948,7 @@ projects:
 - name: Markdown Inline Graphviz
   markdown_extension: markdown_inline_graphviz
   github_id: cesaremorel/markdown-inline-graphviz
-  pypi_id: markdown_inline_graphviz_extension
+  pypi_id: markdown-inline-graphviz-extension
   labels: [markdown]
   category: markdown
 - name: markdown-katex
@@ -990,7 +990,7 @@ projects:
 - name: markdown_sub_sup
   markdown_extension: markdown_sub_sup
   github_id: alberic89/markdown_sub_sup
-  pypi_id: markdown_sub_sup
+  pypi_id: markdown-sub-sup
   labels: [markdown]
   category: markdown
 - name: KBD Extension
@@ -1008,19 +1008,19 @@ projects:
 - name: Semantic Data Extension
   markdown_extension: mdx_semanticdata
   github_id: aleray/mdx_semanticdata
-  pypi_id: mdx_semanticdata
+  pypi_id: mdx-semanticdata
   labels: [markdown]
   category: markdown
 - name: Semantic WikiLinks Extension
   markdown_extension: mdx_semanticwikilinks
   github_id: aleray/mdx_semanticwikilinks
-  pypi_id: mdx_semanticwikilinks
+  pypi_id: mdx-semanticwikilinks
   labels: [markdown]
   category: markdown
 - name: Cite Extension
   markdown_extension: mdx_cite
   github_id: aleray/mdx_cite
-  pypi_id: mdx_cite
+  pypi_id: mdx-cite
   labels: [markdown]
   category: markdown
 - name: Markdown Grid Tables
@@ -1420,7 +1420,7 @@ projects:
 - name: Mdx Include
   markdown_extension: mdx_include
   github_id: neurobin/mdx_include
-  pypi_id: mdx_include
+  pypi_id: mdx-include
   labels: [markdown]
   category: snippets-include
 - name: mkdocs-version-annotations