Add configuration file example with default values only.

Reviewed-on: https://codeberg.org/git-pages/git-pages/pulls/127
Co-authored-by: Maxim Slipenko <maxim@slipenko.com>
Co-committed-by: Maxim Slipenko <maxim@slipenko.com>

conf/config.default.toml

@@ -0,0 +1,60 @@
+# git-pages configuration
+
+log-format = 'text'
+
+[server]
+pages = 'tcp/localhost:3000'
+caddy = 'tcp/localhost:3001'
+metrics = 'tcp/localhost:3002'
+
+[storage]
+type = 'fs'
+
+[storage.fs]
+root = './data'
+
+[limits]
+max-site-size = '128MB'
+max-manifest-size = '1MB'
+max-inline-file-size = '256B'
+git-large-object-threshold = '1MB'
+max-symlink-depth = 16
+update-timeout = '1m0s'
+max-heap-size-ratio = 0.5
+forbidden-domains = []
+allowed-repository-url-prefixes = []
+allowed-custom-headers = ['X-Clacks-Overhead']
+
+[audit]
+node-id = 0
+collect = false
+include-ip = ''
+
+[observability]
+slow-response-threshold = '500ms'
+
+# [[wildcard]]
+# domain = "codeberg.page"
+# clone-url = "https://codeberg.org/<user>/<project>.git"
+# index-repo = "pages"
+# index-repo-branch = "main"
+# authorization = "forgejo"
+
+# [fallback]
+# proxy-to = "https://codeberg.page"
+# insecure = false
+
+# S3-compatible object storage backend
+# Set [storage] type = "s3" to activate.
+# [storage.s3]
+# endpoint = "play.min.io"
+# access-key-id = "Q3AM3UQ867SPQQA43P2F"
+# secret-access-key = "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG"
+# region = "us-east-1"
+# bucket = "git-pages-demo"
+# [storage.s3.blob-cache]
+# max-size = "256MB"
+# [storage.s3.site-cache]
+# max-size = "16MB"
+# max-age = "60s"
+# max-stale = "1h"