fix(docs): broken links (gnolang#2431)

<!-- please provide a detailed description of the changes made in this
pull request. -->

## Description

This PR fixes a few broken links in the docs, cherry-picked from gnolang#2416.

<details><summary>Contributors' checklist...</summary>

- [x] Added new tests, or not needed, or not feasible
- [x] Provided an example (e.g. screenshot) to aid review or the PR is
self-explanatory
- [x] Updated the official documentation or not needed
- [x] No breaking changes were made, or a `BREAKING CHANGE: xxx` message
was included in the description
- [x] Added references to related issues and PRs
- [x] Provided any useful hints for running manual tests
- [x] Added new benchmarks to [generated
graphs](https://gnoland.github.io/benchmarks), if any. More info
[here](https://github.com/gnolang/gno/blob/master/.benchmarks/README.md).
</details>

docs/how-to-guides/connecting-from-go.md

@@ -101,8 +101,9 @@ func main() {
 A few things to note:
 - You can view keys in your local keybase by running `gnokey list`.  
 - You can get the password from a user input using the IO package.
-- `Signer` can also be initialized in-memory from a BIP39 mnemonic, using the 
-[`SignerFromBip39`](../reference/gnoclient/signer.md#func-signerfrombip39) function.
+- `Signer` can also be initialized in-memory from a BIP39 mnemonic, using the
+[`SignerFromBip39`](https://gnolang.github.io/gno/github.com/gnolang/gno@v0.0.0/gno.land/pkg/gnoclient.html#SignerFromBip39)
+function.
 
 ## Initialize the RPC connection & Client
 
@@ -115,8 +116,8 @@ if err != nil {
 }
 ```
 
-A list of Gno.land network endpoints & chain IDs can be found in the [Gno RPC 
-endpoints](../reference/rpc-endpoints.md#network-configurations) page. 
+A list of Gno.land network endpoints & chain IDs can be found in the 
+[Gno RPC endpoints](../reference/network-config.md) page.
 
 With this, we can initialize the `gnoclient.Client` struct: 
 

docs/reference/gnoclient/gnoclient.md

@@ -30,5 +30,5 @@ To see the full reference documentation for the `gnoclient` package, we recommen
 visiting the [`gnoclient godoc page`](https://gnolang.github.io/gno/github.com/gnolang/gno@v0.0.0/gno.land/pkg/gnoclient.html).
 
 For a tutorial on how to use the `gnoclient` package, check out 
-["How to connect a Go app to Gno.land"](../../how-to-guides/connecting-from-go.md.)
+["How to connect a Go app to Gno.land"](../../how-to-guides/connecting-from-go.md)