add trimParagraphTagsInMd option to disable fix

Author: KaiPrince

README.md

@@ -102,6 +102,6 @@ Now if you run `eleventy`, you should get an _index.html_ in your _site/_ direct
 
 ## Options
 
-Coming soon!
+`trimParagraphTagsInMd` (bool, default true) - Trims unexpected `<p>` tags that markdown puts around custom elements [more details](https://github.com/ProjectEvergreen/eleventy-plugin-wcc/issues/8).
 
 > _Please follow along in our [issue tracker](https://github.com/ProjectEvergreen/eleventy-plugin-wcc/issues) or make a suggestion!_

src/index.js

@@ -3,7 +3,7 @@ const { stripWrappingParagraphs } = require('./utils');
 
 module.exports = {
   configFunction: function (eleventyConfig, options = {}) {
-    const { definitions = [] } = options;
+    const { definitions = [], trimParagraphTagsInMd = true } = options;
     const definitionPathnames = definitions.map(definition => definition.pathname);
 
     for (const definition of definitions) {
@@ -15,9 +15,10 @@ module.exports = {
         return;
       }
 
-      const processedContent = this.inputPath.endsWith('.md')
-        ? stripWrappingParagraphs(content)
-        : content;
+      const processedContent =
+        trimParagraphTagsInMd && this.inputPath.endsWith('.md')
+          ? stripWrappingParagraphs(content)
+          : content;
 
       const { html } = await renderFromHTML(processedContent, definitions);
       return html;