Fix links to google groups (#226)

* updated google groups links to the updated juliaphylo name

Author: jjustison

CONTRIBUTING.md

@@ -9,7 +9,7 @@ please open an issue in [the issue tracker](https://github.com/juliaphylo/PhyloN
 First, search through existing issues (open or closed) that might have the answer to your question.
 If you are reporting a bug, please also include a minimal code example or all relevant information for us to replicate the issue.
 
-For general questions, make sure to check out the [google user group](https://groups.google.com/g/phylonetworks-users). If you cannot find answers to your question, please post a new question. We do our best to reply in a timely fashion, but we are undermanned so we appreciate your patience.
+For general questions, make sure to check out the [google user group](https://groups.google.com/g/juliaphylo-users). If you cannot find answers to your question, please post a new question. We do our best to reply in a timely fashion, but we are undermanned so we appreciate your patience.
 
 ## Contributing Code
 

README.md

@@ -52,7 +52,7 @@ To get help, check
   step-by-step tutorial with background on networks (last revised 2022)
 - [tutorial](https://cecileane.github.io/networkPCM-workshop/) for
   comparative methods, including network calibration (2023 workshop)
-- the [google group](https://groups.google.com/forum/#!forum/phylonetworks-users)
+- the [google group](https://groups.google.com/forum/#!forum/juliaphylo-users)
   for common questions. Join the group to post/email your questions,
   or to receive information on new versions, bugs fixed, etc.
 

docs/src/index.md

@@ -37,7 +37,7 @@ It is used by other packages for more specialized tasks, such as
   with background on networks and explanations.
 - [tutorial](https://cecileane.github.io/networkPCM-workshop/) for
   comparative methods, including network calibration (2023 workshop)
-- the [google group](https://groups.google.com/forum/#!forum/phylonetworks-users)
+- the [google group](https://groups.google.com/forum/#!forum/juliaphylo-users)
   has answers to common questions.
 - the [Manual](@ref) and below has a quick tutorial (navigation on the left).
 - the [Library](@ref) further below has the full list of documented functions.

docs/src/man/installation.md

@@ -38,7 +38,7 @@ Pkg.update()
 ```
 It is important to update the package regularly as it is
 undergoing constant development. Join the google group for updates
-[here](https://groups.google.com/forum/#!forum/phylonetworks-users/new).
+[here](https://groups.google.com/forum/#!forum/juliaphylo-users/new).
 
 `Pkg.update()` will install the latest registered version, but there
 could be other improvements in the `master` branch of the

docs/src/man/introduction.md

@@ -101,7 +101,6 @@ nothing # hide
 
 
 ## Phylogenetic networks
-
 In phylogenetics, there two types of networks:
 
 **Explicit** networks have a biological interpretation: