docs: Fix broken link formatting in index.md (#1395)

* docs: Fix broken links in Japanese documentation

Fixed broken links in Japanese translation files that were pointing
to outdated reStructuredText references.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

* docs: Clean up Python format annotations in Japanese .po files

Remove unnecessary Python format annotations (python-format, python-brace-format) from Japanese translation files to improve compatibility and reduce clutter.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

* docs: Fix broken Markdown links in Japanese translation files

Fixed broken links in Japanese .po translation files that were incorrectly
formatted after the RST to Markdown conversion. The links now properly use
Markdown syntax with correct relative paths and descriptive link text.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

* docs: Convert OpenCollective URL to proper Markdown link format

Fixed the bare URL to use proper Markdown link syntax for better rendering and consistency with other links in the documentation.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

---------

Co-authored-by: Claude <[email protected]>

Author: nakamura-to

docs/index.md

@@ -26,7 +26,7 @@ Doma is a database access framework for Java with several notable strengths:
 We kindly ask for your support to help us continue the development and maintenance of Doma.
 Your donation will enable us to fix bugs faster, improve the library, and add new features.
 
-You can make a contribution here: <https://opencollective.com/doma>
+You can make a contribution here: [https://opencollective.com/doma](https://opencollective.com/doma)
 
 Thank you very much for supporting Doma!
 :::

docs/locale/ja/LC_MESSAGES/index.po

@@ -3,7 +3,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  doma-docs\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2025-07-12 01:18+0900\n"
+"POT-Creation-Date: 2025-07-12 15:30+0900\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: \n"
 "Language: ja_JP\n"
@@ -60,9 +60,12 @@ msgstr ""
 "いただいたご寄付は、バグ修正の迅速化やライブラリの改善、新機能の追加に活用させていただきます。"
 
 #: ../../index.md:29
-
-msgid "You can make a contribution here: <https://opencollective.com/doma>"
-msgstr "こちらで寄付ができます: https://opencollective.com/doma"
+msgid ""
+"You can make a contribution here: "
+"[https://opencollective.com/doma](https://opencollective.com/doma)"
+msgstr ""
+"こちらで寄付ができます: "
+"[https://opencollective.com/doma](https://opencollective.com/doma)"
 
 #: ../../index.md:31
 msgid "Thank you very much for supporting Doma!"
@@ -81,22 +84,18 @@ msgid "Links"
 msgstr "リンク集"
 
 #: ../../index.md:75
-
 msgid "[News and announcements](https://twitter.com/domaframework)"
 msgstr "[ニュースやアナウンス](https://twitter.com/domaframework)"
 
 #: ../../index.md:76
-
 msgid "[GitHub repository](https://github.com/domaframework/doma)"
 msgstr "[GitHub リポジトリ](https://github.com/domaframework/doma)"
 
 #: ../../index.md:77
-
 msgid "[Release Notes](https://github.com/domaframework/doma/releases)"
 msgstr "[リリースノート](https://github.com/domaframework/doma/releases)"
 
 #: ../../index.md:78
-
 msgid ""
 "[JavaDoc](https://www.javadoc.io/doc/org.seasar.doma/doma-"
 "core/latest/index.html)"
@@ -105,12 +104,10 @@ msgstr ""
 "core/latest/index.html)"
 
 #: ../../index.md:79
-
 msgid "[Examples](https://github.com/domaframework/simple-examples)"
 msgstr "[サンプルプロジェクト](https://github.com/domaframework/simple-examples)"
 
 #: ../../index.md:80
-
 msgid ""
 "[Doma Compile Plugin](https://github.com/domaframework/doma-compile-"
 "plugin)"
@@ -119,7 +116,6 @@ msgstr ""
 "plugin)"
 
 #: ../../index.md:81
-
 msgid ""
 "[Doma CodeGen Plugin](https://github.com/domaframework/doma-codegen-"
 "plugin)"
@@ -128,7 +124,6 @@ msgstr ""
 "plugin)"
 
 #: ../../index.md:82
-
 msgid "[Doma version 1](http://doma.seasar.org/)"
 msgstr "[Doma v1.x のWebサイト](http://doma.seasar.org/)"