readme updated

README.md

@@ -6,5 +6,28 @@ Obsidian supports LaTeX, but there are cases where Unicode symbols suffice.
 
 Run command `LaTeX to Unicode`.  In the pop-up box, type in the LaTeX commands, then insert the conversion results.
 
+```
+Input: 3^2 + 4^2 = 5^2
+Output: 3² + 4² = 5²
+
+Input: (x+y)^2 = x^2 + 2xy + y^2
+Output: (x+y)² = x² + 2xy + y²
+
+Input: H_2 + \sfrac{1}{2}O_2 \to H_2O
+Output: H₂ + ½O₂ → H₂O
+
+Input: -\mathbf{r} \times i\hbar\nabla
+Output: −𝐫 × iℏ∇
+
+Input: \sqrt(2) = 1.4142\cdots
+Output: √(2) = 1.4142⋯
+
+Input: x \in y \Rightarrow y \ni x
+Output: x ∈ y ⇒ y ∋ x
+
+Input: \mathbb{N} \equiv {1, 2, 3, \ldots}
+Output: ℕ ≡ {1, 2, 3, …}
+```
+
 ## Acknowledgment
 - This plugin is based on [unicodeit](https://www.unicodeit.net/), specifically [this GitHub repository](https://github.com/svenkreiss/unicodeit/).