bugfix: fix on requirements.txt

Author: JasonLSC

examples/requirements.txt

@@ -4,7 +4,7 @@
 # The repo used in gsplat
 # git+https://github.com/rmbrualla/pycolmap@cc7ea4b7301720ac29287dbe450952511b32125e
 # The recommended repo used for GSCodec Studio
-pip install git+https://github.com/JasonLSC/pycolmap.git
+git+https://github.com/JasonLSC/pycolmap.git
 
 # (optional) nerfacc for torch version rasterization 
 # git+https://github.com/nerfstudio-project/nerfacc