docs: fix minor capitalization typo (#1392)

README.md

@@ -117,7 +117,7 @@ Don't know what to contribute? Here is the public
 [Project Board](https://github.com/users/imartinez/projects/3) with several ideas. 
 
 Head over to Discord 
-#contributors channel and ask for write permissions on that Github project.
+#contributors channel and ask for write permissions on that GitHub project.
 
 ## 💬 Community
 Join the conversation around PrivateGPT on our:
@@ -158,4 +158,4 @@ This project has been strongly influenced and supported by other amazing project
 [GPT4All](https://github.com/nomic-ai/gpt4all),
 [LlamaCpp](https://github.com/ggerganov/llama.cpp),
 [Chroma](https://www.trychroma.com/)
-and [SentenceTransformers](https://www.sbert.net/).
+and [SentenceTransformers](https://www.sbert.net/).

fern/docs.yml

@@ -89,7 +89,7 @@ navigation:
 # `type:primary` is always displayed at the most right side of the navbar
 navbar-links:
   - type: secondary
-    text: Github
+    text: GitHub
     url: "https://github.com/imartinez/privateGPT"
   - type: secondary
     text: Contact us