Add thinning instructions/requirements

- [x] Bulls Blood Beets
- [x] Buttercrunch
- [x] Cherry Tomato
- [x] Arugula
- [x] Breen
- [x] Jalapeño
- [x] Flashy Trout Back
- [x] Celery
- [x] Green Mustard
- [x] Cardinale
- [x] Butterhead
- [x] Kale
- [x] Endive Lettuce
- [x] Bok Choi
- [x] Kale Lacinato
- [x] Lollo Rossa
- [x] Matilda
- [x] Monte Carlo
- [x] Purslane
- [x] Red Amaranth
- [x] Red Mustard
- [x] Red Sail
- [x] Red Salad Bowl
- [ ] Red Sorrel
- [ ] Romaine
- [ ] Rouge d'hiver
- [ ] Sorrel
- [ ] Swiss Chard
- [ ] Tatsoi
- [ ] Wasabi Greens
- [ ] Watercress
- [ ] Wheatgrass
- [ ] Banana Peppers
- [ ] Cape Gooseberry
- [ ] Cucumbers
- [ ] Mini Eggplant
- [ ] Mini Strawberries
- [ ] Sugar Snap Peas
- [ ] Sweet Peppers
- [ ] Black Cherry Tomatoes
- [ ] Jubilee Tomatoes
- [ ] Roma Tomatoes
- [ ] San Marzano Tomatoes
- [ ] Rio Grande Tomatoes
- [ ] Night-Scented Stock
- [ ] Borage
- [ ] Torenia
- [ ] Red Marietta Gold
- [ ] Radio Calendula
- [ ] Petunia
- [ ] Oopsy Daisy
- [ ] Lavender
- [ ] Fiesta Gitana
- [ ] Chamomille
- [ ] Campanula
- [ ] Lemon Balm
- [ ] Savory
- [ ] Chervil
- [ ] Zaatar
- [ ] Purple Basil
- [ ] Thyme
- [ ] Thai Basil
- [ ] Stevia
- [ ] Shiso
- [ ] Sage
- [ ] Rosemary
- [ ] Italian Parsley
- [ ] Oregano
- [ ] Mint
- [ ] Mexican Tarragon
- [ ] Lemongrass
- [ ] Dill
- [ ] Cilantro
- [ ] Chives
- [ ] Catnip
- [ ] Basil