docs: fix some typos (#30367)

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---------

Signed-off-by: pudongair <744355276@qq.com>
Co-authored-by: Chester Curme <chester.curme@gmail.com>

docs/docs/contributing/how_to/integrations/package.mdx

@@ -35,7 +35,7 @@ from a template, which can be edited to implement your LangChain components.
 - [GitHub](https://github.com) account
 - [PyPi](https://pypi.org/) account
 
-### Boostrapping a new Python package with langchain-cli
+### Bootstrapping a new Python package with langchain-cli
 
 First, install `langchain-cli` and `poetry`:
 
@@ -104,7 +104,7 @@ dependency management and packaging, and you're welcome to use any other tools y
 - [GitHub](https://github.com) account
 - [PyPi](https://pypi.org/) account
 
-### Boostrapping a new Python package with Poetry
+### Bootstrapping a new Python package with Poetry
 
 First, install Poetry:
 

docs/docs/integrations/providers/langchain_decorators.mdx

@@ -171,7 +171,7 @@ print(result)
 
 
 # Prompt declarations
-By default the prompt is is the whole function docs, unless you mark your prompt 
+By default the prompt is the whole function docs, unless you mark your prompt 
 
 ## Documenting your prompt