docs: fixed profiles specs links (#918)

## Description

Closes: #XXXX

---

### Author Checklist

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please add links to any relevant follow up issues.*

I have...

- [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [ ] targeted the correct branch (see [PR Targeting](https://github.com/desmos-labs/desmos/blob/master/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://docs.cosmos.network/v0.44/building-modules/intro.html)
- [ ] included the necessary unit and integration [tests](https://github.com/desmos-labs/desmos/blob/master/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

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I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

x/profiles/spec/02-concepts.md

@@ -99,7 +99,9 @@ To implement the IBC capability of connecting an external account to a Desmos pr
 ###### LinkChainAccountPacketData
 `LinkChainAccountPacketData` defines the object that should be sent inside a `MsgSendPacket` when wanting to link an external chain to a Desmos profile using IBC.
 
-+++ https://github.com/desmos-labs/desmos/blob/v3.0.0/x/profiles/types/models_packets.pb.go#L28-L43
+```js reference
+https://github.com/desmos-labs/desmos/blob/v3.0.0/x/profiles/types/models_packets.pb.go#L28-L43
+```
 
 Note that the `SourceAddress` field must be one of the currently supported types:
 

x/profiles/spec/04-messages.md

@@ -12,7 +12,9 @@ A profile can be created or edited with the `MsgSaveProfile`, which allows to sp
 
 If a profile already exists, and you want to edit only a subset of the fields, you can use `[do-not-modify]` to specify the fields which values should not be changed (i.e. setting the `DTag` to `[do-not-modify]` will preserve the current value of the DTag).
 
-+++ https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_profile.proto#L12-L32
+```js reference
+https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_profile.proto#L12-L32
+```
 
 It's expected to fail if a profile with the same DTag exists.
 
@@ -21,28 +23,36 @@ A profile can be deleted using the `MsgDeleteProfile`. This will remove all the
 
 Beware that using this message you will lose the ownership of your DTag and you will delete everything that is related to your profile (i.e. incoming DTag transfer requests). 
 
-+++ https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_profile.proto#L39-L45
+```js reference
+https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_profile.proto#L39-L45
+```
 
 It's expected to fail if the signer does not have a profile. 
 
 ## Msg/RequestDTagTransfer
 A DTag transfer request can be created using the `MsgRequestDTagTransfer`. 
 
-+++ https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_dtag_requests.proto#L12-L25
+```js reference
+https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_dtag_requests.proto#L12-L25
+```
 
 It's expected to fail if the recipient of the request has no profile.
 
 ## Msg/CancelDTagTransferRequest
 An outgoing DTag transfer request can be canceled using the `MsgCancelDTagTransferRequest`. 
 
-+++ https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_dtag_requests.proto#L33-L44
+```js reference
+https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_dtag_requests.proto#L33-L44
+```
 
 It's expected to fail if the request does not exist.
 
 ## Msg/AcceptDTagTransferRequest
 An incoming DTag transfer request can be accepted using the `MsgAcceptDTagTransferRequest`. When accepting a DTag transfer request, the user accepting it **must** specify a new DTag that they want after their old one gets transferred to the request sender.
 
-+++ https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_dtag_requests.proto#L52-L70
+```js reference
+https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_dtag_requests.proto#L52-L70
+```
 
 It's expected to fail if:
 * the request does not exist.
@@ -51,14 +61,18 @@ It's expected to fail if:
 ## Msg/RefuseDTagTransferRequest
 An incoming DTag transfer request can be refused using `MsgRefuseDTagTransferRequest`
 
-+++ https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_dtag_requests.proto#L78-L89
+```js reference
+https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_dtag_requests.proto#L78-L89
+```
 
 It's expected to fail if the request does not exist.
 
 ## Msg/LinkChainAccount
 A new chain link can be created using the `MsgLinkChainAccount`
 
-+++ https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_chain_links.proto#L11-L35
+```js reference
+https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_chain_links.proto#L11-L35
+```
 
 It's expected to fail if:
 * the signer does not have a profile.
@@ -67,20 +81,26 @@ It's expected to fail if:
 ## Msg/UnlinkChainAccount
 An existing chain link can be deleted using the `MsgUnlinkChainAccount`
 
-+++ https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_chain_links.proto#L42-L54
+```js reference
+https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_chain_links.proto#L42-L54
+```
 
 It's expected to fail if the chain link does not exist.
 
 ## Msg/LinkApplication
 A new application link can be created using the `MsgLinkApplication`
 
-+++ https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_app_links.proto#L11-L48
+```js reference
+https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_app_links.proto#L11-L48
+```
 
 It's expected to fail if the signer does not have a profile.
 
 ## Msg/UnlinkApplication
 An existing application link can be deleted using the `MsgUnlinkApplication`
 
-+++ https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_app_links.proto#L56-L71
+```js reference
+https://github.com/desmos-labs/desmos/blob/v3.0.0/proto/desmos/profiles/v2/msgs_app_links.proto#L56-L71
+```
 
 It's expected to fail if the application link does not exist.