Update .gitignore

Author: junhe1979

.gitignore

@@ -18,7 +18,7 @@ docs/build/
 docs/site/
 
 # File generated by Pkg, the package manager, based on a corresponding Project.toml
-# It records a fixed state of all packages used by the project. As such, it should not be
+# It records a  fixed state of all packages used by the project. As such, it should not be
 # committed for packages, but should be committed for applications that require a static
 # environment.
 Manifest.toml