Unify the capitalization of Git

yadm.1

@@ -71,7 +71,7 @@ is passed through to
 Git commands or aliases are invoked with the
 .B yadm
 managed repository.
-The working directory for git commands will be the configured
+The working directory for Git commands will be the configured
 .IR work-tree " (usually
 .IR $HOME ).
 
@@ -205,7 +205,7 @@ this command is provided as a way to change configurations of the repository man
 One useful case might be to configure the repository so untracked files are shown in status commands.
 .B yadm
 initially configures its repository so that untracked files are not shown.
-If you wish use the default git behavior (to show untracked files and directories), you can remove this configuration.
+If you wish use the default Git behavior (to show untracked files and directories), you can remove this configuration.
 
 .RS
 .RS