feat(tiberius-docs): add instructions

markdown/org/docs/patterns/tiberius/instructions/en.md

@@ -1,8 +1,31 @@
+<Note>
 
-<Fixme>
+Tiberius is a historically inspired pattern, and if you want more authenticity, handsewing is the way to go. Personally, I use a sewing machine. You do you.
 
-This documentation page is yet to be written.
+</Note>
 
-Sorry for the inconvenience.
 
-</Fixme>
+## Step 1 -- Sew shoulder seams
+
+- Put both parts with good sides together. Sew the shoulder seams, taking care to stop at the notches for the head opening.
+- Finish the seams, with a method of your choice. (If you used the fabrics recommended in the ([fabric options](/docs/patterns/tiberius/fabric)), they *will* fray. Folding the seam allowance twice, enclosing the raw edge and topstitching is an option. You can also use decorative topstitching.)
+
+<Note>
+
+If you opted for cutting the whole tunica out of one piece, carefully cut out the head opening between the notches instead. Finish the opening.
+
+</Note>
+
+
+## Step 2 -- Sew side seams
+
+- Still with good sides together, sew the side seams. Start at the notch for the armhole and work your way down. Take care to align your layers properly.
+- Finish seams.
+
+## Step 3 -- Hem the bottom edge
+
+Hem the bottom of your garment. If you want to use decorative stitches, this is another place to use them.
+
+## Step 4 - You're done!
+
+Pull on your tunica, belt it around your waist, play around with how you gather the fabric, and enjoy!