Move Onenote migration procedure to new page

Onenote.md

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+# Migrating from OneNote (user contributed)
+
+## Prep Onenote notes for best compatibility
+
+- Remove Onenote Tags and replace with Emoji if possible (Onenote Tags will get imported into trilium as an image which clutters the Trilium tree somewhat)
+- Make sure to use Onenote headings where applicable (These will be carried over correctly into Trilium)
+- Remove extra whitespace in Onenote (Whitespace seems to be more noticible in Trilium, so removing it now will make it look nicer in trilium)
+- If possible, try to avoid very long Onenote pages. Trilium works best with shorter concise pages with any number of sub or (sub-sub...) pages.
+- Make sure numbered lists don't have unusual spaces between items in the list (Sometimes the numbered list will be start at 1 again in Trilum if there is an extra space in the list in OneNote.
+
+## Migration Procedure
+### Import into Evernote from OneNote:
+
+- Install [Evernote Legacy](https://help.evernote.com/hc/en-us/articles/360052560314-Install-an-older-version-of-Evernote). Current versions of Evernote do not have this functionality. (Requires Evernote account, but import works without internet connection - be sure to NOT sync notes to Evernote!).
+- In evernote navigate to File > Import > Onenote > Notebook > Section > OK
+
+If exporting all sections at a time, they will not be grouped in folders - they will all be added to a single folder, but the order will be kept, so you can re-group into folders after importing to Trilium
+
+### Export from Evernote
+
+- Right click on the created notebook in Evernote and choose "Export Notes…"
+- Use the default export format of .enex
+
+### Cleanup enex file (optional)
+
+- If the Onenote header (that is at the top of each Onenote page) is not desired, you can use the following regex to remove them in a text editor like VsCode:
+
+    Find: `.<div.><h1`
+    Replace with: `<h1`
+
+### Import into Trilium
+
+-  In Trilium, right click on the root node and choose Import (all default options should be fine).
+- Select the .enex file exported from Evernote
+- Be patient. Large .enex files may take a few minutes to process
+- Repeat import for each .enex file
+
+## Other importing notes:
+- Centered text in Onenote will be left-justified after importing into Trilium
+- Internal onenote links will obviously be broken, but the link still exists so you can do a search in Trilium to find all onenote:// links and then re-link to the proper Trilium page (there is no way to link to a paragraph in trilium, so it's good to keep trilium pages short so links point to a small chunk of information instead of a massive note)
+- Text colors, highlights, and formatting generally carries over well
+- Revision history will be lost, but any new revisions will be tracked in Trilium
+- The structure of notes are not maintained exactly, so if you had sub-notes in Onenote, you may have to re-arrange the notes accordingly (This is easy since the order of the notes is preserved).
+- Evernote tags are created for each "section" in OneNote and these tags are carried over to Trilium as attributes
+    - If the tags are not desired, you can turn them off in the Evernote export options.
+- If the "Created with OneNote" text is not desired, do a find/replace in the enex files before importing to Trilium
+- Some links will be disabled (not clickable) when importing from enex.
+- Files, screenshots, and attachments are all preserved (This is the only one-note export option that seems to preserve all of these).