docs: make_your_own.md formatting fix for mkdocs (#855)

docs/features/plugins/make_your_own.md

@@ -177,6 +177,7 @@ If your Tool class requires more advanced initialization, you would add it to th
 The default initialization can be seen in the `loadToolWithAuth` function, and most custom plugins should be initialized this way.
 
 Here are a few customConstructors, which have varying initializations
+
 ```javascript
   const customConstructors = {
     browser: async () => {
@@ -248,6 +249,7 @@ module.exports = {
   **Note:** the `authField` prop must match the process.env variable name
   
   Here is an example of a plugin with more than one credential variable
+
 ```json
   [
   {