Readme files are always rendered in Markdown format

[LindsayZhou]

Describe the bug Regardless the actual format, readme files are always rendered in Markdown format.
Included in the service's About tab and the repository's readme page

To Reproduce Create a repository and commit a readme file.

Expected behavior For non-Markdown readme files, represent them as normal files.

I personally like to use orgmode files as readme files.
If the service cannot parse the orgmode file, then I export it as a plain text file (emacs built-in feature).

Screenshots Current: What I want:

Environment (please complete the following information):

• OS: Alpine Linux 3.19.0
• Terminal: foot
• Version: 0.7.4

Additional context Here is my rough patch:

diff --git a/pkg/ui/pages/repo/readme.go b/pkg/ui/pages/repo/readme.go
index e977bb9..1b12560 100644
--- a/pkg/ui/pages/repo/readme.go
+++ b/pkg/ui/pages/repo/readme.go
@@ -3,6 +3,7 @@ package repo
 import (
    "fmt"
    "path/filepath"
+   "strings"

    "github.com/charmbracelet/bubbles/key"
    "github.com/charmbracelet/bubbles/spinner"
@@ -34,7 +35,6 @@ type Readme struct {
 func NewReadme(common common.Common) *Readme {
    readme := code.New(common, "", "")
    readme.NoContentStyle = readme.NoContentStyle.Copy().SetString("No readme found.")
-   readme.UseGlamour = true
    s := spinner.New(spinner.WithSpinner(spinner.Dot),
        spinner.WithStyle(common.Styles.Spinner))
    return &Readme{
@@ -114,6 +114,13 @@ func (r *Readme) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
    case ReadmeMsg:
        r.isLoading = false
        r.readmePath = msg.Path
+       readmeExt := strings.ToLower(filepath.Ext(msg.Path))
+       r.code.UseGlamour = (readmeExt == ".md" ||
+           readmeExt == ".markdown" ||
+           readmeExt == ".mdown" ||
+           readmeExt == "mkdn" ||
+           readmeExt == "mdwn" ||
+           readmeExt == "mkd")
        r.code.GotoTop()
        cmds = append(cmds, r.code.SetContent(msg.Content, msg.Path))
    case spinner.TickMsg:
diff --git a/pkg/ui/pages/selection/selection.go b/pkg/ui/pages/selection/selection.go
index 4b9b72a..9f0d884 100644
--- a/pkg/ui/pages/selection/selection.go
+++ b/pkg/ui/pages/selection/selection.go
@@ -2,7 +2,9 @@ package selection

 import (
    "fmt"
+   "path/filepath"
    "sort"
+   "strings"

    "github.com/charmbracelet/bubbles/key"
    "github.com/charmbracelet/bubbles/list"
@@ -62,7 +64,6 @@ func New(c common.Common) *Selection {
        tabs:       t,
    }
    readme := code.New(c, "", "")
-   readme.UseGlamour = true
    readme.NoContentStyle = c.Styles.NoContent.Copy().
        SetString(defaultNoContent)
    selector := selector.New(c,
@@ -206,6 +207,13 @@ func (s *Selection) Init() tea.Cmd {
            if err != nil {
                continue
            }
+           readmeExt := strings.ToLower(filepath.Ext(path))
+           s.readme.UseGlamour = (readmeExt == ".md" ||
+               readmeExt == ".markdown" ||
+               readmeExt == ".mdown" ||
+               readmeExt == "mkdn" ||
+               readmeExt == "mdwn" ||
+               readmeExt == "mkd")

            readmeCmd = s.readme.SetContent(readme, path)
        }