Merge pull request UCL#248 from UCL/saransh/update-installation

fix (installation): working links + canopy is at EOL

Author: dpshelio

session99/linux.md

@@ -63,24 +63,6 @@ which python
 
 shows a path where you installed anaconda.
 
-
-Python via Enthought Canopy
----------------------------
-
-Alternatively you may install a complete independent scientific python distribution. One of these is
-Enthought Canopy.
-
-The Enthought Canopy python distribution exists in two different versions. A basic free version with
-a limited number of packages (Canopy express) and a non free full version. The full version can be
-obtained free of charge for academic use. Register with
-[Enthought Scientific Computing](https://enthought.com/products/canopy/academic/) using your UCL
-e-mail address for an academic licence.
-
-You may then use your Enthought user account to sign into the installed Canopy application and
-activate the full academic version. Canopy comes with a package manager from where it is possible to
-install and update a large number of python packages. The packages installed by default should cover
-our needs.
-
 Git
 ---
 

session99/mac.md

@@ -43,7 +43,7 @@ Then, go to Xcode...Preferences...Downloads... and install the command line tool
 
 ## Homebrew
 
-[Homebrew](brew.sh) is a package manager for OSX which enables the installation of a
+[Homebrew](https://brew.sh) is a package manager for OSX which enables the installation of a
 lot of software useful for scientific computing. It is required for some of the installations
 below. But not essential for Software Carpentry. Homebrew requires the Xcode tools above.
 
@@ -69,7 +69,7 @@ installing homebrew.
 
 
 We recommend installing a complete scientific python distribution. One of these is
-[Anaconda](https://www.anaconda.com/distribution/).
+[Anaconda](https://anaconda.org/).
 
 Please download and install [Anaconda](https://www.anaconda.com/download/)
 (Python 3.7 version).