Update README.md

Author: hemanta-gayen

README.md

@@ -16,18 +16,18 @@
 
 | Capability | Example | Docs |
 |---|---|---|
-| **Arithmetic & Variables** | `expr.evaluate("5 + 7 * 2")` | [numbers.md](docs/datatypes/numbers.md) |
-| **Unit conversion** | `expr.evaluate("2 inch to cm")` | [units.md](docs/datatypes/units.md) |
-| **Matrix operations** | `expr.evaluate("det([-1,2;3,1])")` | [matrices.md](docs/datatypes/matrices.md) |
-| **Complex numbers** | `expr.evaluate("9/3 + 2i")` | [complex.md](docs/datatypes/complex_numbers.md) |
-| **Symbolic math** | `expr.evaluate('expand("(x+1)^2")')` | [algebra.md](docs/expressions/algebra.md) |
-| **Arbitrary precision** | `expr.evaluate('bignumber("0.1") + bignumber("0.2")')` | [bignumbers.md](docs/datatypes/bignumbers.md) |
-| **Exact fractions** | `expr.evaluate("fraction(1,3) + fraction(1,6)")` | [fractions.md](docs/datatypes/fractions.md) |
-| **Calculus & statistics** | `expr.evaluate('integral("x^2", 0, 1)')` | [functions.md](docs/reference/functions.md) |
-| **Lambda expressions** | `expr.evaluate('map([1,2,3], x -> x^2)')` | [customization.md](docs/expressions/customization.md) |
-| **Expression chaining** | `c.evaluate("sqrt(x)").evaluate("ans * 2").done()` | [chaining.md](docs/core/chaining.md) |
-| **State serialization** | `expr.exportState()` / `expr.importState(state)` | [serialization.md](docs/core/serialization.md) |
-| **Degree-mode trig** | `expr.evaluate("sind(90)")` | [functions.md](docs/reference/functions.md) |
+| **Arithmetic & Variables** | `expr.evaluate("5 + 7 * 2")` | [datatypes/numbers.md](docs/datatypes/numbers.md) |
+| **Unit conversion** | `expr.evaluate("2 inch to cm")` | [datatypes/units.md](docs/datatypes/units.md) |
+| **Matrix operations** | `expr.evaluate("det([-1,2;3,1])")` | [datatypes/matrices.md](docs/datatypes/matrices.md) |
+| **Complex numbers** | `expr.evaluate("9/3 + 2i")` | [datatypes/complex.md](docs/datatypes/complex_numbers.md) |
+| **Symbolic math** | `expr.evaluate('expand("(x+1)^2")')` | [expressions/algebra.md](docs/expressions/algebra.md) |
+| **Arbitrary precision** | `expr.evaluate('bignumber("0.1") + bignumber("0.2")')` | [datatypes/bignumbers.md](docs/datatypes/bignumbers.md) |
+| **Exact fractions** | `expr.evaluate("fraction(1,3) + fraction(1,6)")` | [datatypes/fractions.md](docs/datatypes/fractions.md) |
+| **Calculus & statistics** | `expr.evaluate('integral("x^2", 0, 1)')` | [reference/functions.md](docs/reference/functions.md) |
+| **Lambda expressions** | `expr.evaluate('map([1,2,3], x -> x^2)')` | [expressions/customization.md](docs/expressions/customization.md) |
+| **Expression chaining** | `c.evaluate("sqrt(x)").evaluate("ans * 2").done()` | [core/chaining.md](docs/core/chaining.md) |
+| **State serialization** | `expr.exportState()` / `expr.importState(state)` | [core/serialization.md](docs/core/serialization.md) |
+| **Degree-mode trig** | `expr.evaluate("sind(90)")` | [reference/functions.md](docs/reference/functions.md) |
 
 ## Installation