fix: broken links in markdown documentation (#4240)

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This addition fixes 9 broken links in existing markdown documentation
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## Overview

- Fixes broken links in current markdown documentation
- Pairs the broken links with appropriate corresponding live (not
broken) page links

README.md

@@ -6,7 +6,7 @@
 [![Go Report Card](https://goreportcard.com/badge/github.com/celestiaorg/celestia-app)](https://goreportcard.com/report/github.com/celestiaorg/celestia-app)
 [![GitPOAP Badge](https://public-api.gitpoap.io/v1/repo/celestiaorg/celestia-app/badge)](https://www.gitpoap.io/gh/celestiaorg/celestia-app)
 
-celestia-app is the software used by [validators](https://docs.celestia.org/nodes/validator-node) and [consensus nodes](https://docs.celestia.org/nodes/consensus-node) on the Celestia consensus network. celestia-app is a blockchain application built using parts of the Cosmos stack:
+celestia-app is the software used by [validators](https://docs.celestia.org/how-to-guides/validator-node) and [consensus nodes](https://docs.celestia.org/how-to-guides/consensus-node) on the Celestia consensus network. celestia-app is a blockchain application built using parts of the Cosmos stack:
 
 - [celestiaorg/cosmos-sdk](https://github.com/celestiaorg/cosmos-sdk) a fork of [cosmos/cosmos-sdk](https://github.com/cosmos/cosmos-sdk)
 - [celestiaorg/celestia-core](https://github.com/celestiaorg/celestia-core) a fork of [cometbft/cometbft](https://github.com/cometbft/cometbft)
@@ -73,7 +73,7 @@ If you'd rather not install from source, you can download a prebuilt binary from
     celestia-app_Linux_x86_64.tar.gz: OK
     ```
 
-See <https://docs.celestia.org/nodes/celestia-app> for more information.
+See <https://docs.celestia.org/how-to-guides/celestia-app> for more information.
 
 ## Usage
 

docs/release-notes/release-notes.md

@@ -73,9 +73,9 @@ For more information refer to the module [docs](../../x/signal/README.md)
 
 ### Node Operators (v2.0.0)
 
-If you are a consensus node operator, please follow the communication channels listed under [network upgrades](https://docs.celestia.org/nodes/participate#network-upgrades) to learn when this release is recommended for each network (e.g. Mocha, Mainnet Beta).
+If you are a consensus node operator, please follow the communication channels listed under [network upgrades](https://docs.celestia.org/how-to-guides/participate#network-upgrades) to learn when this release is recommended for each network (e.g. Mocha, Mainnet Beta).
 
-Consensus node operators are expected to upgrade to this release _prior_ to the Lemongrass hardfork if they intend to continue participating in the network. The command used to start the [consensus node](https://docs.celestia.org/nodes/consensus-node#start-the-consensus-node) or [validator node](https://docs.celestia.org/nodes/validator-node#run-the-validator-node) will accept an additional `--v2-upgrade-height` flag. See [this table](https://docs.celestia.org/nodes/network-upgrade-process#lemongrass-network-upgrade) for upgrade heights for each network.
+Consensus node operators are expected to upgrade to this release _prior_ to the Lemongrass hardfork if they intend to continue participating in the network. The command used to start the [consensus node](https://docs.celestia.org/how-to-guides/consensus-node#start-the-consensus-node) or [validator node](https://docs.celestia.org/how-to-guides/validator-node#run-the-validator-node) will accept an additional `--v2-upgrade-height` flag. See [this table](https://docs.celestia.org/how-to-guides/network-upgrade-process#lemongrass-network-upgrade) for upgrade heights for each network.
 
 Consensus node operators should enable the BBR (Bottleneck Bandwidth and Round-trip propagation time) congestion control algorithm. See [#3812](https://github.com/celestiaorg/celestia-app/pull/3812).
 

tools/blocktime/readme.md

@@ -2,7 +2,7 @@
 
 `blocktime` is a simple tool to analyze block production rates of a chain. It scrapes the latest headers through the RPC endpoint of a provided node and calculates the average, min, max and standard deviation of the intervals between the last `n` blocks (default: 100).
 
-To start a consensus node and expose the RPC endpoint, see the [docs](https://docs.celestia.org/nodes/consensus-node).
+To start a consensus node and expose the RPC endpoint, see the [docs](https://docs.celestia.org/how-to-guides/consensus-node).
 
 ## Usage
 

x/blob/README.md

@@ -181,7 +181,7 @@ celestia-appd tx blob PayForBlobs <hex encoded namespace> <hex encoded data> [fl
 ```
 
 For submitting PFB transaction via a light client's rpc, see [celestia-node's
-documentation](https://docs.celestia.org/developers/node-tutorial#submitting-data).
+documentation](https://docs.celestia.org/tutorials/node-tutorial#submitting-data).
 
 The steps in the
 [`SubmitPayForBlobs`](https://github.com/celestiaorg/celestia-app/blob/v1.0.0-rc2/x/blob/payforblob.go#L15-L54)