swap screencasts with screenshots for git features

Author: Jonathan Dahan

images/screencasts/git.svg

@@ -11,8 +11,6 @@ If you have a question, suggestion, or request please [open an issue][] and be s
 
 ## What it does
 
-![animation of git features](./images/screencasts/git.svg)
-
 All geometry does is run simple functions to customize the left and right prompts.
 
 We bundle a few useful functions to start with, that can:
@@ -108,7 +106,7 @@ GEOMETRY_GIT_NO_COMMITS_MESSAGE=""  # hide the 'no commits' message in new repos
 GEOMETRY_GIT_TIME_DETAILED=true     # show full time (e.g. `12h 30m 53s`) instead of the coarsest interval (e.g. `12h`)
 ```
 
-![git_conflicts](/images/screenshots/git_conflicts.png)
+![picture of git features](./images/screenshots/git.png)
 
 ## Hostname based colors
 Geometry provides a generic function (`geometry::hostcolor`) for setting any color based on hostname. The color is calculated as the sum of each character converted to an integer. For example the hostname 'abc' generates a value of 294.