Fix links

Author: WardBrian

src/index.qmd

@@ -41,7 +41,7 @@ can be found in the table below:
 | 2.26    | [html](https://mc-stan.org/docs/2_26/reference-manual/) [pdf](https://mc-stan.org/docs/2_26/reference-manual-2_26.pdf) | [html](https://mc-stan.org/docs/2_26/stan-users-guide/) [pdf](https://mc-stan.org/docs/2_26/stan-users-guide-2_26.pdf) | [html](https://mc-stan.org/docs/2_26/cmdstan-guide/) [pdf](https://mc-stan.org/docs/2_26/cmdstan-guide-2_26.pdf) | [html](https://mc-stan.org/docs/2_26/functions-reference/) [pdf](https://mc-stan.org/docs/2_26/functions-reference-2_26.pdf) |
 | 2.25    | [html](https://mc-stan.org/docs/2_25/reference-manual/) [pdf](https://mc-stan.org/docs/2_25/reference-manual-2_25.pdf) | [html](https://mc-stan.org/docs/2_25/stan-users-guide/) [pdf](https://mc-stan.org/docs/2_25/stan-users-guide-2_25.pdf) | [html](https://mc-stan.org/docs/2_25/cmdstan-guide/) [pdf](https://mc-stan.org/docs/2_25/cmdstan-guide-2_25.pdf) | [html](https://mc-stan.org/docs/2_25/functions-reference/) [pdf](https://mc-stan.org/docs/2_25/functions-reference-2_25.pdf) |
 | 2.24    | [html](https://mc-stan.org/docs/2_24/reference-manual/) [pdf](https://mc-stan.org/docs/2_24/reference-manual-2_24.pdf) | [html](https://mc-stan.org/docs/2_24/stan-users-guide/) [pdf](https://mc-stan.org/docs/2_24/stan-users-guide-2_24.pdf) | [html](https://mc-stan.org/docs/2_24/cmdstan-guide/) [pdf](https://mc-stan.org/docs/2_24/cmdstan-guide-2_24.pdf) | [html](https://mc-stan.org/docs/2_24/functions-reference/) [pdf](https://mc-stan.org/docs/2_24/functions-reference-2_24.pdf) |
-| 2.23    | [html](https://mc-stan.org/docs/2_23/reference-manual/) [pdf](https://mc-stan.org/docs/2_23/reference-manual-2_23.pdf) | [html](https://mc-stan.org/docs/2_23/stan-users-guide/) [pdf](https://mc-stan.org/docs/2_23/stan-users-guide-2_23.pdf) | [html](https://mc-stan.org/docs/2_23/cmdstan-guide/) [pdf](https://mc-stan.org/docs/2_23/cmdstan-guide-2_23.pdf) | [html](https://mc-stan.org/docs/2_23/functions-reference/) [pdf](https://mc-stan.org/docs/2_23/functions-reference-2_23.pdf) |
+| 2.23    | [html](https://mc-stan.org/docs/2_23/reference-manual/) [pdf](https://mc-stan.org/docs/2_23/reference-manual-2_23.pdf) | [html](https://mc-stan.org/docs/2_23/stan-users-guide/) [pdf](https://mc-stan.org/docs/2_23/stan-users-guide-2_23.pdf) | [html](https://mc-stan.org/docs/2_23/cmdstan-guide/) | [html](https://mc-stan.org/docs/2_23/functions-reference/) [pdf](https://mc-stan.org/docs/2_23/functions-reference-2_23.pdf) |
 | 2.22    | [html](https://mc-stan.org/docs/2_22/reference-manual/) [pdf](https://mc-stan.org/docs/2_22/reference-manual-2_22.pdf) | [html](https://mc-stan.org/docs/2_22/stan-users-guide/) [pdf](https://mc-stan.org/docs/2_22/stan-users-guide-2_22.pdf) |                                                                                                                  | [html](https://mc-stan.org/docs/2_22/functions-reference/) [pdf](https://mc-stan.org/docs/2_22/functions-reference-2_22.pdf) |
 | 2.21    | [html](https://mc-stan.org/docs/2_21/reference-manual/) [pdf](https://mc-stan.org/docs/2_21/reference-manual-2_21.pdf) | [html](https://mc-stan.org/docs/2_21/stan-users-guide/) [pdf](https://mc-stan.org/docs/2_21/stan-users-guide-2_21.pdf) |                                                                                                                  | [html](https://mc-stan.org/docs/2_21/functions-reference/) [pdf](https://mc-stan.org/docs/2_21/functions-reference-2_21.pdf) |
 | 2.20    | [html](https://mc-stan.org/docs/2_20/reference-manual/) [pdf](https://mc-stan.org/docs/2_20/reference-manual-2_20.pdf) | [html](https://mc-stan.org/docs/2_20/stan-users-guide/) [pdf](https://mc-stan.org/docs/2_20/stan-users-guide-2_20.pdf) |                                                                                                                  | [html](https://mc-stan.org/docs/2_20/functions-reference/) [pdf](https://mc-stan.org/docs/2_20/functions-reference-2_20.pdf) |

src/reference-manual/user-functions.qmd

@@ -95,7 +95,7 @@ arguments to produce an expression, which has a value when executed.
 ### Functions as statements {-}
 
 Functions with void return types may be applied to arguments and used
-as [statements.qmd](statements).
+as [statements](statements.qmd).
 These act like distribution statements or print
 statements.  Such uses are only appropriate for functions that act
 through side effects, such as incrementing the log probability
@@ -298,8 +298,8 @@ a function elsewhere results in a compile-time error.
 ### Log probability access in functions {-}
 
 Functions that include
-[statements.qmd#distribution-statements.section](distribution statements) or
-[statements.qmd#increment-log-prob.section](log probability increment statements)
+[distribution statements](statements.qmd#distribution-statements.section) or
+[log probability increment statements](statements.qmd#increment-log-prob.section)
 must have a name that ends in `_lp`.
 Attempts to use distribution statements or increment log probability
 statements in other functions lead to a compile-time error.